diff --git a/.gitignore b/.gitignore
index 322d73b92..4f60c04f8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,49 +11,49 @@ setup/constants.h
 setup/precision.h
 
 # Scotch files
-src/meshfem2D/scotch_5.1.12b/src/Makefile.inc
-src/meshfem2D/scotch_5.1.12b/bin/
-src/meshfem2D/scotch_5.1.12b/include/
-src/meshfem2D/scotch_5.1.12b/lib/
-src/meshfem2D/scotch_5.1.12b/src/libscotch/*.o
-src/meshfem2D/scotch_5.1.12b/src/libscotch/*.a
-src/meshfem2D/scotch_5.1.12b/src/libscotch/dummysizes
-src/meshfem2D/scotch_5.1.12b/src/libscotch/parser_ll.c
-src/meshfem2D/scotch_5.1.12b/src/libscotch/parser_ly.h
-src/meshfem2D/scotch_5.1.12b/src/libscotch/parser_yy.c
-src/meshfem2D/scotch_5.1.12b/src/libscotch/scotch.h
-src/meshfem2D/scotch_5.1.12b/src/libscotch/scotchf.h
-src/meshfem2D/scotch_5.1.12b/src/libscotch/y.output
-src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/*.o
-src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/libscotchmetis.a
-src/meshfem2D/scotch_5.1.12b/src/scotch/acpl
-src/meshfem2D/scotch_5.1.12b/src/scotch/amk_ccc
-src/meshfem2D/scotch_5.1.12b/src/scotch/amk_fft2
-src/meshfem2D/scotch_5.1.12b/src/scotch/amk_grf
-src/meshfem2D/scotch_5.1.12b/src/scotch/amk_hy
-src/meshfem2D/scotch_5.1.12b/src/scotch/amk_m2
-src/meshfem2D/scotch_5.1.12b/src/scotch/amk_p2
-src/meshfem2D/scotch_5.1.12b/src/scotch/atst
-src/meshfem2D/scotch_5.1.12b/src/scotch/gbase
-src/meshfem2D/scotch_5.1.12b/src/scotch/gcv
-src/meshfem2D/scotch_5.1.12b/src/scotch/gmap
-src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_hy
-src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_m2
-src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_m3
-src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_msh
-src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_ub2
-src/meshfem2D/scotch_5.1.12b/src/scotch/gmtst
-src/meshfem2D/scotch_5.1.12b/src/scotch/gord
-src/meshfem2D/scotch_5.1.12b/src/scotch/gotst
-src/meshfem2D/scotch_5.1.12b/src/scotch/gout
-src/meshfem2D/scotch_5.1.12b/src/scotch/gpart
-src/meshfem2D/scotch_5.1.12b/src/scotch/gscat
-src/meshfem2D/scotch_5.1.12b/src/scotch/gtst
-src/meshfem2D/scotch_5.1.12b/src/scotch/mcv
-src/meshfem2D/scotch_5.1.12b/src/scotch/mmk_m2
-src/meshfem2D/scotch_5.1.12b/src/scotch/mmk_m3
-src/meshfem2D/scotch_5.1.12b/src/scotch/mord
-src/meshfem2D/scotch_5.1.12b/src/scotch/mtst
+external_libs/scotch_5.1.12b/src/Makefile.inc
+external_libs/scotch_5.1.12b/bin/
+external_libs/scotch_5.1.12b/include/
+external_libs/scotch_5.1.12b/lib/
+external_libs/scotch_5.1.12b/src/libscotch/*.o
+external_libs/scotch_5.1.12b/src/libscotch/*.a
+external_libs/scotch_5.1.12b/src/libscotch/dummysizes
+external_libs/scotch_5.1.12b/src/libscotch/parser_ll.c
+external_libs/scotch_5.1.12b/src/libscotch/parser_ly.h
+external_libs/scotch_5.1.12b/src/libscotch/parser_yy.c
+external_libs/scotch_5.1.12b/src/libscotch/scotch.h
+external_libs/scotch_5.1.12b/src/libscotch/scotchf.h
+external_libs/scotch_5.1.12b/src/libscotch/y.output
+external_libs/scotch_5.1.12b/src/libscotchmetis/*.o
+external_libs/scotch_5.1.12b/src/libscotchmetis/libscotchmetis.a
+external_libs/scotch_5.1.12b/src/scotch/acpl
+external_libs/scotch_5.1.12b/src/scotch/amk_ccc
+external_libs/scotch_5.1.12b/src/scotch/amk_fft2
+external_libs/scotch_5.1.12b/src/scotch/amk_grf
+external_libs/scotch_5.1.12b/src/scotch/amk_hy
+external_libs/scotch_5.1.12b/src/scotch/amk_m2
+external_libs/scotch_5.1.12b/src/scotch/amk_p2
+external_libs/scotch_5.1.12b/src/scotch/atst
+external_libs/scotch_5.1.12b/src/scotch/gbase
+external_libs/scotch_5.1.12b/src/scotch/gcv
+external_libs/scotch_5.1.12b/src/scotch/gmap
+external_libs/scotch_5.1.12b/src/scotch/gmk_hy
+external_libs/scotch_5.1.12b/src/scotch/gmk_m2
+external_libs/scotch_5.1.12b/src/scotch/gmk_m3
+external_libs/scotch_5.1.12b/src/scotch/gmk_msh
+external_libs/scotch_5.1.12b/src/scotch/gmk_ub2
+external_libs/scotch_5.1.12b/src/scotch/gmtst
+external_libs/scotch_5.1.12b/src/scotch/gord
+external_libs/scotch_5.1.12b/src/scotch/gotst
+external_libs/scotch_5.1.12b/src/scotch/gout
+external_libs/scotch_5.1.12b/src/scotch/gpart
+external_libs/scotch_5.1.12b/src/scotch/gscat
+external_libs/scotch_5.1.12b/src/scotch/gtst
+external_libs/scotch_5.1.12b/src/scotch/mcv
+external_libs/scotch_5.1.12b/src/scotch/mmk_m2
+external_libs/scotch_5.1.12b/src/scotch/mmk_m3
+external_libs/scotch_5.1.12b/src/scotch/mord
+external_libs/scotch_5.1.12b/src/scotch/mtst
 
 # Build time
 bin/*
diff --git a/configure b/configure
index a507ad4a5..d790f1328 100755
--- a/configure
+++ b/configure
@@ -6588,7 +6588,7 @@ ac_compiler_gnu=$ac_cv_fc_compiler_gnu
   # uses bundled scotch: current version pointed to by symbolic link scotch/
   USE_BUNDLED_SCOTCH=1
 
-  SCOTCH_DIR="$srcdir/src/meshfem2D/scotch"
+  SCOTCH_DIR="$srcdir/external_libs/scotch"
   SCOTCH_LIBDIR="${SCOTCH_DIR}/lib"
   SCOTCH_INCLUDEDIR="${SCOTCH_DIR}/include"
  else
@@ -6646,11 +6646,13 @@ if test x"$MPIFC" = x; then :
     MPIFC=mpif90
 
 fi
+
 if test x"$MPICC" = x; then :
 
     MPICC=mpicc
 
 fi
+
 if test x"$LOCAL_PATH_IS_ALSO_GLOBAL" = x; then :
 
     LOCAL_PATH_IS_ALSO_GLOBAL=true
@@ -6658,9 +6660,7 @@ if test x"$LOCAL_PATH_IS_ALSO_GLOBAL" = x; then :
 fi
 
 # Checks for typedefs, structures, and compiler characteristics.
-
 # check fortran modules flag
-
 $as_echo "## ----------------- ##
 ## module extensions ##
 ## ----------------- ##"
@@ -7620,16 +7620,80 @@ ac_compiler_gnu=$ac_cv_fc_compiler_gnu
 
 fi
 
-############################################################
+##
+## Git version info
+##
+$as_echo "## ---------------- ##
+## git version info ##
+## ---------------- ##"
 
-$as_echo "## ----------------------------------- ##
-## setting up default simulation setup ##
-## ----------------------------------- ##"
+pushd $srcdir > /dev/null
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for .git/config" >&5
+$as_echo_n "checking for .git/config... " >&6; }
+if ${ac_cv_file__git_config+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  test "$cross_compiling" = yes &&
+  as_fn_error $? "cannot check for file existence when cross compiling" "$LINENO" 5
+if test -r ".git/config"; then
+  ac_cv_file__git_config=yes
+else
+  ac_cv_file__git_config=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_file__git_config" >&5
+$as_echo "$ac_cv_file__git_config" >&6; }
+if test "x$ac_cv_file__git_config" = xyes; then :
 
-# Output results.
-ac_config_files="$ac_config_files Makefile setup/constants.h setup/constants_tomography.h setup/precision.h setup/config.fh"
+SPECFEM2D_RELEASE_VERSION=0
+eval SPECFEM2D_GIT_REVISION=`git describe`
+eval SPECFEM2D_GIT_HASH=`git log -1 --pretty=format:%H`
+eval SPECFEM2D_GIT_DATE=\"`git log -1 --pretty=format:%ci`\"
+eval SPECFEM2D_GIT_BRANCH=`git rev-parse --abbrev-ref HEAD`
+
+else
+
+SPECFEM2D_RELEASE_VERSION=1
+SPECFEM2D_GIT_REVISION="unknown"
+SPECFEM2D_GIT_HASH="unknown"
+SPECFEM2D_GIT_DATE="unknown"
+SPECFEM2D_GIT_BRANCH="unknown"
+
+fi
+
+popd > /dev/null
+
+cat >>confdefs.h <<_ACEOF
+#define SPECFEM2D_RELEASE_VERSION $SPECFEM2D_RELEASE_VERSION
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define SPECFEM2D_GIT_REVISION "$SPECFEM2D_GIT_REVISION"
+_ACEOF
 
 
+cat >>confdefs.h <<_ACEOF
+#define SPECFEM2D_GIT_HASH "$SPECFEM2D_GIT_HASH"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define SPECFEM2D_GIT_DATE "$SPECFEM2D_GIT_DATE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define SPECFEM2D_GIT_BRANCH "$SPECFEM2D_GIT_BRANCH"
+_ACEOF
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define SPECFEM2D_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+#AC_DEFINE_UNQUOTED([SPECFEM2D_DOI], ["10.5281/zenodo.xxxxx"], [Define SPECFEM2D doi])
 if test -d $srcdir/.git; then :
 
     GIT_VERSION_DEPS="$srcdir/.git/logs/HEAD"
@@ -7646,6 +7710,17 @@ $as_echo "$as_me: not a git repository" >&6;}
 
 fi
 
+############################################################
+
+$as_echo "## ----------------------------------- ##
+## setting up default simulation setup ##
+## ----------------------------------- ##"
+
+# Output results.
+ac_config_files="$ac_config_files Makefile setup/constants.h setup/constants_tomography.h setup/precision.h setup/config.fh"
+
+
+# Scotch makefile
 if test "$USE_BUNDLED_SCOTCH" = 1; then
   ac_config_files="$ac_config_files ${SCOTCH_DIR}/src/Makefile.inc"
 
@@ -8403,12 +8478,12 @@ for ac_config_target in $ac_config_targets
 do
   case $ac_config_target in
     "setup/config.h") CONFIG_HEADERS="$CONFIG_HEADERS setup/config.h" ;;
+    "setup/version.fh") CONFIG_FILES="$CONFIG_FILES setup/version.fh" ;;
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
     "setup/constants.h") CONFIG_FILES="$CONFIG_FILES setup/constants.h" ;;
     "setup/constants_tomography.h") CONFIG_FILES="$CONFIG_FILES setup/constants_tomography.h" ;;
     "setup/precision.h") CONFIG_FILES="$CONFIG_FILES setup/precision.h" ;;
     "setup/config.fh") CONFIG_FILES="$CONFIG_FILES setup/config.fh" ;;
-    "setup/version.fh") CONFIG_FILES="$CONFIG_FILES setup/version.fh" ;;
     "${SCOTCH_DIR}/src/Makefile.inc") CONFIG_FILES="$CONFIG_FILES ${SCOTCH_DIR}/src/Makefile.inc" ;;
     "DATA/Par_file") CONFIG_FILES="$CONFIG_FILES DATA/Par_file:DATA/Par_file" ;;
     "DATA/SOURCE") CONFIG_FILES="$CONFIG_FILES DATA/SOURCE:DATA/SOURCE" ;;
diff --git a/configure.ac b/configure.ac
index 3623a92c7..0cd048477 100644
--- a/configure.ac
+++ b/configure.ac
@@ -240,7 +240,7 @@ else
   # uses bundled scotch: current version pointed to by symbolic link scotch/
   USE_BUNDLED_SCOTCH=1
 
-  SCOTCH_DIR="$srcdir/src/meshfem2D/scotch"
+  SCOTCH_DIR="$srcdir/external_libs/scotch"
   SCOTCH_LIBDIR="${SCOTCH_DIR}/lib"
   SCOTCH_INCLUDEDIR="${SCOTCH_DIR}/include"
  else
@@ -283,17 +283,17 @@ AC_ARG_VAR(LOCAL_PATH_IS_ALSO_GLOBAL, [files on a local path on each node are al
 AS_IF([test x"$MPIFC" = x],[
     MPIFC=mpif90
 ])
+
 AS_IF([test x"$MPICC" = x],[
     MPICC=mpicc
 ])
+
 AS_IF([test x"$LOCAL_PATH_IS_ALSO_GLOBAL" = x],[
     LOCAL_PATH_IS_ALSO_GLOBAL=true
 ])
 
 # Checks for typedefs, structures, and compiler characteristics.
-
 # check fortran modules flag
-
 AS_BOX([module extensions])
 
 AC_FC_MODULE_EXTENSION
@@ -329,6 +329,23 @@ AS_IF([test x"$want_cuda" != xno], [
     CIT_CUDA_CONFIG
 ])
 
+##
+## Git version info
+##
+AS_BOX([git version info])
+CIG_PKG_GIT(SPECFEM2D)
+AC_DEFINE_UNQUOTED([SPECFEM2D_VERSION], ["$PACKAGE_VERSION"], [Define SPECFEM2D version])
+#AC_DEFINE_UNQUOTED([SPECFEM2D_DOI], ["10.5281/zenodo.xxxxx"], [Define SPECFEM2D doi])
+AS_IF([test -d $srcdir/.git], [
+    GIT_VERSION_DEPS="$srcdir/.git/logs/HEAD"
+    AC_MSG_NOTICE([building from git repository])
+    AC_SUBST(GIT_VERSION_DEPS)
+], [
+    dnl Only substitute if not in a git repository.
+    AC_MSG_NOTICE([not a git repository])
+    AC_CONFIG_FILES([setup/version.fh])
+])
+
 ############################################################
 
 AS_BOX([setting up default simulation setup])
@@ -342,16 +359,7 @@ AC_CONFIG_FILES([
   setup/config.fh
 ])
 
-AS_IF([test -d $srcdir/.git], [
-    GIT_VERSION_DEPS="$srcdir/.git/logs/HEAD"
-    AC_MSG_NOTICE([building from git repository])
-    AC_SUBST(GIT_VERSION_DEPS)
-], [
-    dnl Only substitute if not in a git repository.
-    AC_MSG_NOTICE([not a git repository])
-    AC_CONFIG_FILES([setup/version.fh])
-])
-
+# Scotch makefile
 if test "$USE_BUNDLED_SCOTCH" = 1; then
   AC_CONFIG_FILES([
 	  ${SCOTCH_DIR}/src/Makefile.inc
diff --git a/doc/call_trees_of_the_source_code/Doxyfile_complete_call_tree b/doc/call_trees_of_the_source_code/Doxyfile_complete_call_tree
index bcc86aa68..0e9d9dd9d 100644
--- a/doc/call_trees_of_the_source_code/Doxyfile_complete_call_tree
+++ b/doc/call_trees_of_the_source_code/Doxyfile_complete_call_tree
@@ -686,7 +686,7 @@ RECURSIVE              = YES
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                = "../../src/meshfem2D/scotch" "../../src/meshfem2D/scotch_5.1.12b"
+EXCLUDE                = "../../external_libs/scotch" "../../external_libs/scotch_5.1.12b"
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded
diff --git a/doc/call_trees_of_the_source_code/Doxyfile_truncated_call_tree b/doc/call_trees_of_the_source_code/Doxyfile_truncated_call_tree
index ed4c8fec4..67106a796 100644
--- a/doc/call_trees_of_the_source_code/Doxyfile_truncated_call_tree
+++ b/doc/call_trees_of_the_source_code/Doxyfile_truncated_call_tree
@@ -686,7 +686,7 @@ RECURSIVE              = YES
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                = "../../src/meshfem2D/scotch" "../../src/meshfem2D/scotch_5.1.12b"
+EXCLUDE                = "../../external_libs/scotch" "../../external_libs/scotch_5.1.12b"
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded
diff --git a/src/specfem2D/libjpeg/jaricom.c b/external_libs/libjpeg/jaricom.c
similarity index 100%
rename from src/specfem2D/libjpeg/jaricom.c
rename to external_libs/libjpeg/jaricom.c
diff --git a/src/specfem2D/libjpeg/jcapimin.c b/external_libs/libjpeg/jcapimin.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcapimin.c
rename to external_libs/libjpeg/jcapimin.c
diff --git a/src/specfem2D/libjpeg/jcapistd.c b/external_libs/libjpeg/jcapistd.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcapistd.c
rename to external_libs/libjpeg/jcapistd.c
diff --git a/src/specfem2D/libjpeg/jcarith.c b/external_libs/libjpeg/jcarith.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcarith.c
rename to external_libs/libjpeg/jcarith.c
diff --git a/src/specfem2D/libjpeg/jccoefct.c b/external_libs/libjpeg/jccoefct.c
similarity index 100%
rename from src/specfem2D/libjpeg/jccoefct.c
rename to external_libs/libjpeg/jccoefct.c
diff --git a/src/specfem2D/libjpeg/jccolor.c b/external_libs/libjpeg/jccolor.c
similarity index 100%
rename from src/specfem2D/libjpeg/jccolor.c
rename to external_libs/libjpeg/jccolor.c
diff --git a/src/specfem2D/libjpeg/jcdctmgr.c b/external_libs/libjpeg/jcdctmgr.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcdctmgr.c
rename to external_libs/libjpeg/jcdctmgr.c
diff --git a/src/specfem2D/libjpeg/jchuff.c b/external_libs/libjpeg/jchuff.c
similarity index 100%
rename from src/specfem2D/libjpeg/jchuff.c
rename to external_libs/libjpeg/jchuff.c
diff --git a/src/specfem2D/libjpeg/jcinit.c b/external_libs/libjpeg/jcinit.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcinit.c
rename to external_libs/libjpeg/jcinit.c
diff --git a/src/specfem2D/libjpeg/jcmainct.c b/external_libs/libjpeg/jcmainct.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcmainct.c
rename to external_libs/libjpeg/jcmainct.c
diff --git a/src/specfem2D/libjpeg/jcmarker.c b/external_libs/libjpeg/jcmarker.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcmarker.c
rename to external_libs/libjpeg/jcmarker.c
diff --git a/src/specfem2D/libjpeg/jcmaster.c b/external_libs/libjpeg/jcmaster.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcmaster.c
rename to external_libs/libjpeg/jcmaster.c
diff --git a/src/specfem2D/libjpeg/jcomapi.c b/external_libs/libjpeg/jcomapi.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcomapi.c
rename to external_libs/libjpeg/jcomapi.c
diff --git a/src/specfem2D/libjpeg/jconfig.h b/external_libs/libjpeg/jconfig.h
similarity index 100%
rename from src/specfem2D/libjpeg/jconfig.h
rename to external_libs/libjpeg/jconfig.h
diff --git a/src/specfem2D/libjpeg/jcparam.c b/external_libs/libjpeg/jcparam.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcparam.c
rename to external_libs/libjpeg/jcparam.c
diff --git a/src/specfem2D/libjpeg/jcprepct.c b/external_libs/libjpeg/jcprepct.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcprepct.c
rename to external_libs/libjpeg/jcprepct.c
diff --git a/src/specfem2D/libjpeg/jcsample.c b/external_libs/libjpeg/jcsample.c
similarity index 100%
rename from src/specfem2D/libjpeg/jcsample.c
rename to external_libs/libjpeg/jcsample.c
diff --git a/src/specfem2D/libjpeg/jctrans.c b/external_libs/libjpeg/jctrans.c
similarity index 100%
rename from src/specfem2D/libjpeg/jctrans.c
rename to external_libs/libjpeg/jctrans.c
diff --git a/src/specfem2D/libjpeg/jdapimin.c b/external_libs/libjpeg/jdapimin.c
similarity index 100%
rename from src/specfem2D/libjpeg/jdapimin.c
rename to external_libs/libjpeg/jdapimin.c
diff --git a/src/specfem2D/libjpeg/jdapistd.c b/external_libs/libjpeg/jdapistd.c
similarity index 100%
rename from src/specfem2D/libjpeg/jdapistd.c
rename to external_libs/libjpeg/jdapistd.c
diff --git a/src/specfem2D/libjpeg/jdarith.c b/external_libs/libjpeg/jdarith.c
similarity index 100%
rename from src/specfem2D/libjpeg/jdarith.c
rename to external_libs/libjpeg/jdarith.c
diff --git a/src/specfem2D/libjpeg/jdatadst.c b/external_libs/libjpeg/jdatadst.c
similarity index 100%
rename from src/specfem2D/libjpeg/jdatadst.c
rename to external_libs/libjpeg/jdatadst.c
diff --git a/src/specfem2D/libjpeg/jdatasrc.c b/external_libs/libjpeg/jdatasrc.c
similarity index 100%
rename from src/specfem2D/libjpeg/jdatasrc.c
rename to external_libs/libjpeg/jdatasrc.c
diff --git a/src/specfem2D/libjpeg/jdcoefct.c b/external_libs/libjpeg/jdcoefct.c
similarity index 100%
rename from src/specfem2D/libjpeg/jdcoefct.c
rename to external_libs/libjpeg/jdcoefct.c
diff --git a/src/specfem2D/libjpeg/jdcolor.c b/external_libs/libjpeg/jdcolor.c
similarity index 100%
rename from src/specfem2D/libjpeg/jdcolor.c
rename to external_libs/libjpeg/jdcolor.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_mesh.c b/external_libs/scotch_5.1.12b/src/libscotch/arch_mesh.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_mesh.c
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_mesh.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_mesh.h b/external_libs/scotch_5.1.12b/src/libscotch/arch_mesh.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_mesh.h
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_mesh.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_tleaf.c b/external_libs/scotch_5.1.12b/src/libscotch/arch_tleaf.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_tleaf.c
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_tleaf.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_tleaf.h b/external_libs/scotch_5.1.12b/src/libscotch/arch_tleaf.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_tleaf.h
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_tleaf.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_torus.c b/external_libs/scotch_5.1.12b/src/libscotch/arch_torus.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_torus.c
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_torus.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_torus.h b/external_libs/scotch_5.1.12b/src/libscotch/arch_torus.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_torus.h
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_torus.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_vcmplt.c b/external_libs/scotch_5.1.12b/src/libscotch/arch_vcmplt.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_vcmplt.c
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_vcmplt.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_vcmplt.h b/external_libs/scotch_5.1.12b/src/libscotch/arch_vcmplt.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_vcmplt.h
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_vcmplt.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_vhcub.c b/external_libs/scotch_5.1.12b/src/libscotch/arch_vhcub.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_vhcub.c
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_vhcub.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_vhcub.h b/external_libs/scotch_5.1.12b/src/libscotch/arch_vhcub.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/arch_vhcub.h
rename to external_libs/scotch_5.1.12b/src/libscotch/arch_vhcub.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph.h b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_bd.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_bd.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_bd.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_bd.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_bd.h b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_bd.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_bd.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_bd.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_df.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_df.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_df.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_df.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_df.h b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_df.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_df.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_df.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ex.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ex.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ex.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ex.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ex.h b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ex.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ex.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ex.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ml.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ml.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ml.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ml.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ml.h b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ml.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ml.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_ml.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_sq.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_sq.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_sq.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_sq.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_sq.h b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_sq.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_sq.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_sq.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_st.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_st.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_st.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_st.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_st.h b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_st.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_st.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_st.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_zr.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_zr.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_zr.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_zr.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_zr.h b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_zr.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_bipart_zr.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_bipart_zr.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_check.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_check.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_check.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_gather_all.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_gather_all.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_gather_all.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_gather_all.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_store.c b/external_libs/scotch_5.1.12b/src/libscotch/bdgraph_store.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bdgraph_store.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bdgraph_store.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_bd.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_bd.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_bd.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_bd.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_bd.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_bd.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_bd.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_bd.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_df.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_df.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_df.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_df.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_df.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_df.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_df.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_df.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_ex.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_ex.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_ex.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_ex.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_ex.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_ex.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_ex.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_ex.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_fm.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_fm.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_fm.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_fm.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_fm.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_fm.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_fm.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_fm.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_gg.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_gg.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_gg.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_gg.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_gg.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_gg.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_gg.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_gg.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_gp.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_gp.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_gp.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_gp.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_gp.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_gp.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_gp.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_gp.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_ml.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_ml.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_ml.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_ml.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_ml.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_ml.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_ml.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_ml.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_st.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_st.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_st.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_st.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_st.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_st.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_st.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_st.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_zr.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_zr.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_zr.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_zr.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_zr.h b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_zr.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_bipart_zr.h
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_bipart_zr.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_check.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_check.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_check.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_store.c b/external_libs/scotch_5.1.12b/src/libscotch/bgraph_store.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/bgraph_store.c
rename to external_libs/scotch_5.1.12b/src/libscotch/bgraph_store.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/comm.c b/external_libs/scotch_5.1.12b/src/libscotch/comm.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/comm.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/comm.h b/external_libs/scotch_5.1.12b/src/libscotch/comm.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/comm.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/common_file_compress.c b/external_libs/scotch_5.1.12b/src/libscotch/common_file_compress.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/common_file_compress.h b/external_libs/scotch_5.1.12b/src/libscotch/common_file_compress.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/common_file_uncompress.c b/external_libs/scotch_5.1.12b/src/libscotch/common_file_uncompress.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/common_integer.c b/external_libs/scotch_5.1.12b/src/libscotch/common_integer.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/common_memory.c b/external_libs/scotch_5.1.12b/src/libscotch/common_memory.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/common_sort.c b/external_libs/scotch_5.1.12b/src/libscotch/common_sort.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/common_string.c b/external_libs/scotch_5.1.12b/src/libscotch/common_string.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/common_stub.c b/external_libs/scotch_5.1.12b/src/libscotch/common_stub.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_allreduce.h b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_allreduce.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_band.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_band.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_build.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_build.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_build.h b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_build.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_build_grid3d.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_build_grid3d.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_build_grid3d.h b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_build_grid3d.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_build_hcub.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_build_hcub.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_check.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_coarsen.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_coarsen.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_coarsen_edge.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_coarsen_edge.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_fold.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_fold.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_fold.h b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_fold.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_fold_comm.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_fold_comm.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_fold_comm.h b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_fold_comm.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_fold_dup.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_fold_dup.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_fold_dup.h b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_fold_dup.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_gather.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_gather.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_gather_all.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_gather_all.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_ghst.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_ghst.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_ghst.h b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_ghst.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_halo.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_halo.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_halo.h b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_halo.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_halo_fill.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_halo_fill.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_induce.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_induce.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_io_load.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_io_load.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_io_load.h b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_io_load.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_io_save.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_io_save.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_match.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_match.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_match_check.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_match_check.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_match_scan.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_match_scan.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_match_sync_coll.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_match_sync_coll.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_match_sync_ptop.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_match_sync_ptop.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_scatter.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_scatter.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dgraph_view.c b/external_libs/scotch_5.1.12b/src/libscotch/dgraph_view.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dmapping.c b/external_libs/scotch_5.1.12b/src/libscotch/dmapping.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder.c b/external_libs/scotch_5.1.12b/src/libscotch/dorder.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder.h b/external_libs/scotch_5.1.12b/src/libscotch/dorder.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_gather.c b/external_libs/scotch_5.1.12b/src/libscotch/dorder_gather.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_gather.c
rename to external_libs/scotch_5.1.12b/src/libscotch/dorder_gather.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_gather.h b/external_libs/scotch_5.1.12b/src/libscotch/dorder_gather.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_gather.h
rename to external_libs/scotch_5.1.12b/src/libscotch/dorder_gather.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_io.c b/external_libs/scotch_5.1.12b/src/libscotch/dorder_io.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_io.c
rename to external_libs/scotch_5.1.12b/src/libscotch/dorder_io.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_io_block.c b/external_libs/scotch_5.1.12b/src/libscotch/dorder_io_block.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_io_block.c
rename to external_libs/scotch_5.1.12b/src/libscotch/dorder_io_block.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_io_tree.c b/external_libs/scotch_5.1.12b/src/libscotch/dorder_io_tree.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_io_tree.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_perm.c b/external_libs/scotch_5.1.12b/src/libscotch/dorder_perm.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_perm.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_perm.h b/external_libs/scotch_5.1.12b/src/libscotch/dorder_perm.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_perm.h
rename to external_libs/scotch_5.1.12b/src/libscotch/dorder_perm.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_tree_dist.c b/external_libs/scotch_5.1.12b/src/libscotch/dorder_tree_dist.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/dorder_tree_dist.c
rename to external_libs/scotch_5.1.12b/src/libscotch/dorder_tree_dist.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/dummysizes.c b/external_libs/scotch_5.1.12b/src/libscotch/dummysizes.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/gain.c b/external_libs/scotch_5.1.12b/src/libscotch/gain.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/gain.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/gain.h b/external_libs/scotch_5.1.12b/src/libscotch/gain.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/gain.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/geom.c b/external_libs/scotch_5.1.12b/src/libscotch/geom.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/geom.h b/external_libs/scotch_5.1.12b/src/libscotch/geom.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph.c b/external_libs/scotch_5.1.12b/src/libscotch/graph.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph.h b/external_libs/scotch_5.1.12b/src/libscotch/graph.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_base.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_base.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_base.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_check.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_check.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_coarsen.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_coarsen.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_coarsen.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_coarsen.h b/external_libs/scotch_5.1.12b/src/libscotch/graph_coarsen.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_coarsen.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_coarsen_edge.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_coarsen_edge.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_coarsen_edge.c
rename to external_libs/scotch_5.1.12b/src/libscotch/graph_coarsen_edge.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_induce.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_induce.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_induce.c
rename to external_libs/scotch_5.1.12b/src/libscotch/graph_induce.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_induce.h b/external_libs/scotch_5.1.12b/src/libscotch/graph_induce.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_io.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io.c
rename to external_libs/scotch_5.1.12b/src/libscotch/graph_io.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io.h b/external_libs/scotch_5.1.12b/src/libscotch/graph_io.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io.h
rename to external_libs/scotch_5.1.12b/src/libscotch/graph_io.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_chac.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_io_chac.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_chac.c
rename to external_libs/scotch_5.1.12b/src/libscotch/graph_io_chac.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_habo.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_io_habo.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_habo.c
rename to external_libs/scotch_5.1.12b/src/libscotch/graph_io_habo.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_habo.h b/external_libs/scotch_5.1.12b/src/libscotch/graph_io_habo.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_habo.h
rename to external_libs/scotch_5.1.12b/src/libscotch/graph_io_habo.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_mmkt.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_io_mmkt.c
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rename to external_libs/scotch_5.1.12b/src/libscotch/graph_io_mmkt.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_mmkt.h b/external_libs/scotch_5.1.12b/src/libscotch/graph_io_mmkt.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_mmkt.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_scot.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_io_scot.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_scot.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_scot.h b/external_libs/scotch_5.1.12b/src/libscotch/graph_io_scot.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_io_scot.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_list.c b/external_libs/scotch_5.1.12b/src/libscotch/graph_list.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_list.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/graph_list.h b/external_libs/scotch_5.1.12b/src/libscotch/graph_list.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hall_order_hd.c b/external_libs/scotch_5.1.12b/src/libscotch/hall_order_hd.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hall_order_hd.h b/external_libs/scotch_5.1.12b/src/libscotch/hall_order_hd.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hall_order_hf.c b/external_libs/scotch_5.1.12b/src/libscotch/hall_order_hf.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hall_order_hf.h b/external_libs/scotch_5.1.12b/src/libscotch/hall_order_hf.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hall_order_hx.c b/external_libs/scotch_5.1.12b/src/libscotch/hall_order_hx.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hall_order_hx.h b/external_libs/scotch_5.1.12b/src/libscotch/hall_order_hx.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph.h b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_check.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_fold.c b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_fold.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_fold.h b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_fold.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_gather.c b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_gather.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_induce.c b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_induce.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_nd.c b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_nd.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_nd.h b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_nd.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_si.c b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_si.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_si.h b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_si.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_sq.c b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_sq.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_sq.h b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_sq.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_sq.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_st.c b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_st.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_st.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_st.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_st.h b/external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_st.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hdgraph_order_st.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hdgraph_order_st.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_check.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_check.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_check.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_induce.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_induce.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_induce.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_induce.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_induce.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_induce.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_induce.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_induce.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_induce_edge.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_induce_edge.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_induce_edge.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_induce_edge.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_bl.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_bl.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_bl.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_bl.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_bl.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_bl.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_bl.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_bl.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_cp.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_cp.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_cp.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_cp.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_cp.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_cp.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_cp.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_cp.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_gp.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_gp.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_gp.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_gp.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_gp.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_gp.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_gp.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_gp.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hd.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hd.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hd.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hd.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hd.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hd.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hd.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hd.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hf.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hf.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hf.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hf.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hf.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hf.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hf.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hf.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hx.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hx.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hx.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hx.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hx.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hx.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_hx.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_hx.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_nd.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_nd.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_nd.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_nd.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_nd.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_nd.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_nd.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_nd.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_si.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_si.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_si.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_si.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_si.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_si.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_si.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_si.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_st.c b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_st.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_st.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_st.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_st.h b/external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_st.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hgraph_order_st.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hgraph_order_st.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_check.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_check.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_check.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_check.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_hgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_hgraph.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_hgraph.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_hgraph.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_hgraph.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_hgraph.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_hgraph.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_hgraph.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_induce.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_induce.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_induce.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_induce.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_induce.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_induce.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_induce.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_induce.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_mesh.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_mesh.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_mesh.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_mesh.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_bl.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_bl.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_bl.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_bl.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_bl.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_bl.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_bl.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_bl.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_cp.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_cp.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_cp.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_cp.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_cp.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_cp.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_cp.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_cp.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_gp.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_gp.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_gp.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_gp.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_gp.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_gp.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_gp.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_gp.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_gr.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_gr.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_gr.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_gr.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_gr.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_gr.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_gr.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_gr.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hd.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hd.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hd.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hd.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hd.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hd.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hd.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hd.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hf.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hf.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hf.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hf.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hf.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hf.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hf.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hf.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hx.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hx.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hx.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hx.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hx.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hx.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_hx.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_hx.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_nd.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_nd.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_nd.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_nd.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_nd.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_nd.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_nd.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_nd.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_si.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_si.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_si.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_si.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_si.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_si.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_si.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_si.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_st.c b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_st.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_st.c
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_st.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_st.h b/external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_st.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/hmesh_order_st.h
rename to external_libs/scotch_5.1.12b/src/libscotch/hmesh_order_st.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph.h b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb.c b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_rb.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb.h b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_rb.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_map.c b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_map.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_map.c
rename to external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_map.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_map.h b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_map.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_map.h
rename to external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_map.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_part.c b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_part.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_part.c
rename to external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_part.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_part.h b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_part.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_rb_part.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_st.c b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_st.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_st.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_st.h b/external_libs/scotch_5.1.12b/src/libscotch/kdgraph_map_st.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kdgraph_map_st.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/kgraph.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph.h b/external_libs/scotch_5.1.12b/src/libscotch/kgraph.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_check.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_check.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_ml.c b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_ml.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_ml.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_ml.h b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_ml.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_ml.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb.c b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_rb.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb.h b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_rb.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb_map.c b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_rb_map.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb_map.c
rename to external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_rb_map.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb_map.h b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_rb_map.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb_map.h
rename to external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_rb_map.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb_part.c b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_rb_part.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb_part.c
rename to external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_rb_part.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb_part.h b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_rb_part.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_rb_part.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_st.c b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_st.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_st.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_st.h b/external_libs/scotch_5.1.12b/src/libscotch/kgraph_map_st.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/kgraph_map_st.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/last_resort/parser_ll.c b/external_libs/scotch_5.1.12b/src/libscotch/last_resort/parser_ll.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/last_resort/parser_ll.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/last_resort/parser_ly.h b/external_libs/scotch_5.1.12b/src/libscotch/last_resort/parser_ly.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/last_resort/parser_yy.c b/external_libs/scotch_5.1.12b/src/libscotch/last_resort/parser_yy.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library.h b/external_libs/scotch_5.1.12b/src/libscotch/library.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_arch.c b/external_libs/scotch_5.1.12b/src/libscotch/library_arch.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_arch_build.c b/external_libs/scotch_5.1.12b/src/libscotch/library_arch_build.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_arch_build_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_arch_build_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_arch_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_arch_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_build.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_build.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_build_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_build_f.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_build_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_build_grid3d.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_build_grid3d.c
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rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_build_grid3d.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_build_grid3d_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_build_grid3d_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_check.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_check.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_check_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_check_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_coarsen.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_coarsen.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_coarsen_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_coarsen_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_f.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_gather.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_gather.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_gather_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_gather_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_halo.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_halo.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_halo_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_halo_f.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_halo_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_io_load.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_io_load.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_io_load_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_io_load_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_io_save.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_io_save.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_io_save_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_io_save_f.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_map.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_map.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_map.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_map_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_map_f.c
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rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_map_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_map_view.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_map_view.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_map_view.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_map_view.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_map_view_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_map_view_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_map_view_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_map_view_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_gather.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_gather.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_gather.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_gather.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_gather_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_gather_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_gather_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_gather_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_io.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_io.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_io.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_io.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_block.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_block.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_block.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_block.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_block_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_block_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_block_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_block_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_io_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_perm.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_perm.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_perm.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_perm.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_perm_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_perm_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_perm_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_perm_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_tree_dist.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_tree_dist.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_tree_dist.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_tree_dist.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_tree_dist_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_tree_dist_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_order_tree_dist_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_order_tree_dist_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_scatter.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_scatter.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_scatter.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_scatter.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_scatter_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_scatter_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_scatter_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_scatter_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_stat.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_stat.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_stat.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_stat.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_stat.h b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_stat.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_stat.h
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_stat.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_stat_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_stat_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dgraph_stat_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dgraph_stat_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dmapping.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dmapping.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dmapping.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dmapping.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dmapping.h b/external_libs/scotch_5.1.12b/src/libscotch/library_dmapping.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dmapping.h
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dmapping.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dorder.c b/external_libs/scotch_5.1.12b/src/libscotch/library_dorder.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_dorder.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_dorder.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_error.c b/external_libs/scotch_5.1.12b/src/libscotch/library_error.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_error.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_error.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_error_exit.c b/external_libs/scotch_5.1.12b/src/libscotch/library_error_exit.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_error_exit.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_error_exit.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_geom.c b/external_libs/scotch_5.1.12b/src/libscotch/library_geom.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_geom.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_geom.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_geom_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_geom_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_geom_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_geom_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_base.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_base.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_base.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_base.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_base_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_base_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_base_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_base_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_check.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_check.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_check.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_check_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_check_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_check_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_check_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_coarsen.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_coarsen.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_coarsen.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_coarsen.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_coarsen_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_coarsen_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_coarsen_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_coarsen_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_chac.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_chac.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_chac.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_chac.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_chac_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_chac_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_chac_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_chac_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_habo.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_habo.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_habo.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_habo.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_habo_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_habo_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_habo_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_habo_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_mmkt.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_mmkt.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_mmkt.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_mmkt.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_mmkt_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_mmkt_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_mmkt_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_mmkt_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_scot.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_scot.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_scot.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_scot.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_scot_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_scot_f.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_io_scot_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_io_scot_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_map.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_map.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_map_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_map_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map_view.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_map_view.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map_view.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_map_view.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map_view.h b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_map_view.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map_view.h
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_map_view.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map_view_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_map_view_f.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_map_view_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_map_view_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_order.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_order.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_order.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_order.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_order_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_graph_order_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_graph_order_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_graph_order_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mapping.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mapping.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mapping.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mapping.h b/external_libs/scotch_5.1.12b/src/libscotch/library_mapping.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mapping.h
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mapping.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_graph.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh_graph.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_graph.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh_graph.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_graph_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh_graph_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_graph_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh_graph_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_io_habo.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh_io_habo.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_io_habo.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh_io_habo.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_io_habo_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh_io_habo_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_io_habo_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh_io_habo_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_io_scot.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh_io_scot.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_io_scot.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh_io_scot.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_io_scot_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh_io_scot_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_io_scot_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh_io_scot_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_order.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh_order.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_order.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh_order.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_order_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_mesh_order_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_mesh_order_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_mesh_order_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_order.c b/external_libs/scotch_5.1.12b/src/libscotch/library_order.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_order.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_order.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_order.h b/external_libs/scotch_5.1.12b/src/libscotch/library_order.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_order.h
rename to external_libs/scotch_5.1.12b/src/libscotch/library_order.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_parser.c b/external_libs/scotch_5.1.12b/src/libscotch/library_parser.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_parser.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_parser.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_parser_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_parser_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_parser_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_parser_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_random.c b/external_libs/scotch_5.1.12b/src/libscotch/library_random.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_random.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_random.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_random_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_random_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_random_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_random_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_strat.c b/external_libs/scotch_5.1.12b/src/libscotch/library_strat.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_strat.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_strat.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_version.c b/external_libs/scotch_5.1.12b/src/libscotch/library_version.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_version.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_version.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/library_version_f.c b/external_libs/scotch_5.1.12b/src/libscotch/library_version_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/library_version_f.c
rename to external_libs/scotch_5.1.12b/src/libscotch/library_version_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/libraryf.h b/external_libs/scotch_5.1.12b/src/libscotch/libraryf.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/libraryf.h
rename to external_libs/scotch_5.1.12b/src/libscotch/libraryf.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mapping.c b/external_libs/scotch_5.1.12b/src/libscotch/mapping.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mapping.c
rename to external_libs/scotch_5.1.12b/src/libscotch/mapping.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mapping.h b/external_libs/scotch_5.1.12b/src/libscotch/mapping.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mapping.h
rename to external_libs/scotch_5.1.12b/src/libscotch/mapping.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mapping_io.c b/external_libs/scotch_5.1.12b/src/libscotch/mapping_io.c
similarity index 100%
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rename to external_libs/scotch_5.1.12b/src/libscotch/mapping_io.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mapping_io.h b/external_libs/scotch_5.1.12b/src/libscotch/mapping_io.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mapping_io.h
rename to external_libs/scotch_5.1.12b/src/libscotch/mapping_io.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh.c b/external_libs/scotch_5.1.12b/src/libscotch/mesh.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh.c
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh.h b/external_libs/scotch_5.1.12b/src/libscotch/mesh.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh.h
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_check.c b/external_libs/scotch_5.1.12b/src/libscotch/mesh_check.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_check.c
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_check.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_coarsen.c b/external_libs/scotch_5.1.12b/src/libscotch/mesh_coarsen.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_coarsen.c
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_coarsen.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_coarsen.h b/external_libs/scotch_5.1.12b/src/libscotch/mesh_coarsen.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_coarsen.h
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_coarsen.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_graph.c b/external_libs/scotch_5.1.12b/src/libscotch/mesh_graph.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_graph.c
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_graph.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_graph.h b/external_libs/scotch_5.1.12b/src/libscotch/mesh_graph.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_graph.h
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_graph.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_induce_sepa.c b/external_libs/scotch_5.1.12b/src/libscotch/mesh_induce_sepa.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_induce_sepa.c
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_induce_sepa.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_induce_sepa.h b/external_libs/scotch_5.1.12b/src/libscotch/mesh_induce_sepa.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_induce_sepa.h
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_induce_sepa.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_io.c b/external_libs/scotch_5.1.12b/src/libscotch/mesh_io.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_io.c
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_io.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_io.h b/external_libs/scotch_5.1.12b/src/libscotch/mesh_io.h
similarity index 100%
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rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_io.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_io_habo.c b/external_libs/scotch_5.1.12b/src/libscotch/mesh_io_habo.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_io_habo.c
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_io_habo.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_io_scot.c b/external_libs/scotch_5.1.12b/src/libscotch/mesh_io_scot.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/mesh_io_scot.c
rename to external_libs/scotch_5.1.12b/src/libscotch/mesh_io_scot.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/module.h b/external_libs/scotch_5.1.12b/src/libscotch/module.h
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rename to external_libs/scotch_5.1.12b/src/libscotch/module.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/order.c b/external_libs/scotch_5.1.12b/src/libscotch/order.c
similarity index 100%
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rename to external_libs/scotch_5.1.12b/src/libscotch/order.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/order.h b/external_libs/scotch_5.1.12b/src/libscotch/order.h
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rename to external_libs/scotch_5.1.12b/src/libscotch/order.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/order_check.c b/external_libs/scotch_5.1.12b/src/libscotch/order_check.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/order_io.c b/external_libs/scotch_5.1.12b/src/libscotch/order_io.c
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rename to external_libs/scotch_5.1.12b/src/libscotch/order_io.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/parser.c b/external_libs/scotch_5.1.12b/src/libscotch/parser.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/parser.c
rename to external_libs/scotch_5.1.12b/src/libscotch/parser.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/parser.h b/external_libs/scotch_5.1.12b/src/libscotch/parser.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/parser.h
rename to external_libs/scotch_5.1.12b/src/libscotch/parser.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/parser_ll.h b/external_libs/scotch_5.1.12b/src/libscotch/parser_ll.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/parser_ll.h
rename to external_libs/scotch_5.1.12b/src/libscotch/parser_ll.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/parser_ll.l b/external_libs/scotch_5.1.12b/src/libscotch/parser_ll.l
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/parser_ll.l
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/parser_yy.h b/external_libs/scotch_5.1.12b/src/libscotch/parser_yy.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/parser_yy.y b/external_libs/scotch_5.1.12b/src/libscotch/parser_yy.y
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph.h b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph.h
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rename to external_libs/scotch_5.1.12b/src/libscotch/vdgraph.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_check.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_gather_all.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_gather_all.c
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rename to external_libs/scotch_5.1.12b/src/libscotch/vdgraph_gather_all.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_bd.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_bd.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_bd.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_bd.h b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_bd.h
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rename to external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_bd.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_df.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_df.c
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rename to external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_df.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_df.h b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_df.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_df.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_ml.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_ml.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_ml.c
rename to external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_ml.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_ml.h b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_ml.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_ml.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_sq.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_sq.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_sq.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_sq.h b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_sq.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_st.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_st.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_st.c
rename to external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_st.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_st.h b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_st.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_st.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_zr.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_zr.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_zr.c
rename to external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_zr.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_zr.h b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_separate_zr.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_separate_zr.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_store.c b/external_libs/scotch_5.1.12b/src/libscotch/vdgraph_store.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vdgraph_store.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_check.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_check.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_bd.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_bd.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_bd.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_bd.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_bd.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_es.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_es.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_es.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_es.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_es.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_es.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_fm.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_fm.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_fm.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_fm.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_fm.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_fm.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_gg.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_gg.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_gg.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_gg.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_gg.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_gp.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_gp.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_gp.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_gp.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_ml.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_ml.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_ml.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_ml.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_ml.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_st.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_st.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_st.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_st.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_st.h
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_st.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_th.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_th.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_th.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_th.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_th.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_vw.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_vw.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_vw.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_vw.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_vw.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_zr.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_zr.c
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rename from src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_zr.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_separate_zr.h b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_separate_zr.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vgraph_store.c b/external_libs/scotch_5.1.12b/src/libscotch/vgraph_store.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh.c b/external_libs/scotch_5.1.12b/src/libscotch/vmesh.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh.h b/external_libs/scotch_5.1.12b/src/libscotch/vmesh.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_check.c b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_check.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_fm.c b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_fm.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_fm.h b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_fm.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_gg.c b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_gg.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_gg.h b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_gg.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_gr.c b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_gr.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_gr.h b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_gr.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_ml.c b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_ml.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_ml.h b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_ml.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_st.c b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_st.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_separate_zr.c b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_separate_zr.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotch/vmesh_store.c b/external_libs/scotch_5.1.12b/src/libscotch/vmesh_store.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/Makefile b/external_libs/scotch_5.1.12b/src/libscotchmetis/Makefile
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/metis_graph_order.c b/external_libs/scotch_5.1.12b/src/libscotchmetis/metis_graph_order.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/metis_graph_order.c
rename to external_libs/scotch_5.1.12b/src/libscotchmetis/metis_graph_order.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/metis_graph_order_f.c b/external_libs/scotch_5.1.12b/src/libscotchmetis/metis_graph_order_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/metis_graph_order_f.c
rename to external_libs/scotch_5.1.12b/src/libscotchmetis/metis_graph_order_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/metis_graph_part.c b/external_libs/scotch_5.1.12b/src/libscotchmetis/metis_graph_part.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/metis_graph_part.c
rename to external_libs/scotch_5.1.12b/src/libscotchmetis/metis_graph_part.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/metis_graph_part_f.c b/external_libs/scotch_5.1.12b/src/libscotchmetis/metis_graph_part_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/metis_graph_part_f.c
rename to external_libs/scotch_5.1.12b/src/libscotchmetis/metis_graph_part_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis.h b/external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis.h
rename to external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_order.c b/external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_order.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_order.c
rename to external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_order.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_order_f.c b/external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_order_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_order_f.c
rename to external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_order_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_part.c b/external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_part.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_part.c
rename to external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_part.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_part_f.c b/external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_part_f.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_part_f.c
rename to external_libs/scotch_5.1.12b/src/libscotchmetis/parmetis_dgraph_part_f.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/Makefile b/external_libs/scotch_5.1.12b/src/scotch/Makefile
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/Makefile
rename to external_libs/scotch_5.1.12b/src/scotch/Makefile
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/acpl.c b/external_libs/scotch_5.1.12b/src/scotch/acpl.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/acpl.c
rename to external_libs/scotch_5.1.12b/src/scotch/acpl.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/acpl.h b/external_libs/scotch_5.1.12b/src/scotch/acpl.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/acpl.h
rename to external_libs/scotch_5.1.12b/src/scotch/acpl.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_ccc.c b/external_libs/scotch_5.1.12b/src/scotch/amk_ccc.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_ccc.c
rename to external_libs/scotch_5.1.12b/src/scotch/amk_ccc.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_ccc.h b/external_libs/scotch_5.1.12b/src/scotch/amk_ccc.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_ccc.h
rename to external_libs/scotch_5.1.12b/src/scotch/amk_ccc.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_fft2.c b/external_libs/scotch_5.1.12b/src/scotch/amk_fft2.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_fft2.c
rename to external_libs/scotch_5.1.12b/src/scotch/amk_fft2.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_fft2.h b/external_libs/scotch_5.1.12b/src/scotch/amk_fft2.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_fft2.h
rename to external_libs/scotch_5.1.12b/src/scotch/amk_fft2.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_grf.c b/external_libs/scotch_5.1.12b/src/scotch/amk_grf.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_grf.c
rename to external_libs/scotch_5.1.12b/src/scotch/amk_grf.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_grf.h b/external_libs/scotch_5.1.12b/src/scotch/amk_grf.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_grf.h
rename to external_libs/scotch_5.1.12b/src/scotch/amk_grf.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_hy.c b/external_libs/scotch_5.1.12b/src/scotch/amk_hy.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_hy.c
rename to external_libs/scotch_5.1.12b/src/scotch/amk_hy.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_hy.h b/external_libs/scotch_5.1.12b/src/scotch/amk_hy.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_hy.h
rename to external_libs/scotch_5.1.12b/src/scotch/amk_hy.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_m2.c b/external_libs/scotch_5.1.12b/src/scotch/amk_m2.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_m2.c
rename to external_libs/scotch_5.1.12b/src/scotch/amk_m2.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_m2.h b/external_libs/scotch_5.1.12b/src/scotch/amk_m2.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_m2.h
rename to external_libs/scotch_5.1.12b/src/scotch/amk_m2.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_p2.c b/external_libs/scotch_5.1.12b/src/scotch/amk_p2.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_p2.c
rename to external_libs/scotch_5.1.12b/src/scotch/amk_p2.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/amk_p2.h b/external_libs/scotch_5.1.12b/src/scotch/amk_p2.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/amk_p2.h
rename to external_libs/scotch_5.1.12b/src/scotch/amk_p2.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/atst.c b/external_libs/scotch_5.1.12b/src/scotch/atst.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/atst.c
rename to external_libs/scotch_5.1.12b/src/scotch/atst.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/atst.h b/external_libs/scotch_5.1.12b/src/scotch/atst.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/atst.h
rename to external_libs/scotch_5.1.12b/src/scotch/atst.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dggath.c b/external_libs/scotch_5.1.12b/src/scotch/dggath.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dggath.c
rename to external_libs/scotch_5.1.12b/src/scotch/dggath.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dggath.h b/external_libs/scotch_5.1.12b/src/scotch/dggath.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dggath.h
rename to external_libs/scotch_5.1.12b/src/scotch/dggath.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dgmap.c b/external_libs/scotch_5.1.12b/src/scotch/dgmap.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dgmap.c
rename to external_libs/scotch_5.1.12b/src/scotch/dgmap.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dgmap.h b/external_libs/scotch_5.1.12b/src/scotch/dgmap.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dgmap.h
rename to external_libs/scotch_5.1.12b/src/scotch/dgmap.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dgord.c b/external_libs/scotch_5.1.12b/src/scotch/dgord.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dgord.c
rename to external_libs/scotch_5.1.12b/src/scotch/dgord.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dgord.h b/external_libs/scotch_5.1.12b/src/scotch/dgord.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dgord.h
rename to external_libs/scotch_5.1.12b/src/scotch/dgord.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dgscat.c b/external_libs/scotch_5.1.12b/src/scotch/dgscat.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dgscat.c
rename to external_libs/scotch_5.1.12b/src/scotch/dgscat.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dgscat.h b/external_libs/scotch_5.1.12b/src/scotch/dgscat.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dgscat.h
rename to external_libs/scotch_5.1.12b/src/scotch/dgscat.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dgtst.c b/external_libs/scotch_5.1.12b/src/scotch/dgtst.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dgtst.c
rename to external_libs/scotch_5.1.12b/src/scotch/dgtst.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/dgtst.h b/external_libs/scotch_5.1.12b/src/scotch/dgtst.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/dgtst.h
rename to external_libs/scotch_5.1.12b/src/scotch/dgtst.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gbase.c b/external_libs/scotch_5.1.12b/src/scotch/gbase.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gbase.c
rename to external_libs/scotch_5.1.12b/src/scotch/gbase.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gbase.h b/external_libs/scotch_5.1.12b/src/scotch/gbase.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gbase.h
rename to external_libs/scotch_5.1.12b/src/scotch/gbase.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gcv.c b/external_libs/scotch_5.1.12b/src/scotch/gcv.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gcv.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gcv.h b/external_libs/scotch_5.1.12b/src/scotch/gcv.h
similarity index 100%
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rename to external_libs/scotch_5.1.12b/src/scotch/gcv.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmap.c b/external_libs/scotch_5.1.12b/src/scotch/gmap.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gmap.c
rename to external_libs/scotch_5.1.12b/src/scotch/gmap.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmap.h b/external_libs/scotch_5.1.12b/src/scotch/gmap.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gmap.h
rename to external_libs/scotch_5.1.12b/src/scotch/gmap.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_hy.c b/external_libs/scotch_5.1.12b/src/scotch/gmk_hy.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_hy.c
rename to external_libs/scotch_5.1.12b/src/scotch/gmk_hy.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_hy.h b/external_libs/scotch_5.1.12b/src/scotch/gmk_hy.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_hy.h
rename to external_libs/scotch_5.1.12b/src/scotch/gmk_hy.h
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_m2.c b/external_libs/scotch_5.1.12b/src/scotch/gmk_m2.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_m2.c
rename to external_libs/scotch_5.1.12b/src/scotch/gmk_m2.c
diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_m2.h b/external_libs/scotch_5.1.12b/src/scotch/gmk_m2.h
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_m2.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_m3.c b/external_libs/scotch_5.1.12b/src/scotch/gmk_m3.c
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rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_m3.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_m3.h b/external_libs/scotch_5.1.12b/src/scotch/gmk_m3.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_msh.c b/external_libs/scotch_5.1.12b/src/scotch/gmk_msh.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_msh.h b/external_libs/scotch_5.1.12b/src/scotch/gmk_msh.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_ub2.c b/external_libs/scotch_5.1.12b/src/scotch/gmk_ub2.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmk_ub2.h b/external_libs/scotch_5.1.12b/src/scotch/gmk_ub2.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmtst.c b/external_libs/scotch_5.1.12b/src/scotch/gmtst.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gmtst.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gmtst.h b/external_libs/scotch_5.1.12b/src/scotch/gmtst.h
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gord.c b/external_libs/scotch_5.1.12b/src/scotch/gord.c
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/src/scotch/gord.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gord.h b/external_libs/scotch_5.1.12b/src/scotch/gord.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gotst.c b/external_libs/scotch_5.1.12b/src/scotch/gotst.c
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gotst.h b/external_libs/scotch_5.1.12b/src/scotch/gotst.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gout_c.c b/external_libs/scotch_5.1.12b/src/scotch/gout_c.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gout_c.h b/external_libs/scotch_5.1.12b/src/scotch/gout_c.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gout_o.c b/external_libs/scotch_5.1.12b/src/scotch/gout_o.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gout_o.h b/external_libs/scotch_5.1.12b/src/scotch/gout_o.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gscat.c b/external_libs/scotch_5.1.12b/src/scotch/gscat.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gscat.h b/external_libs/scotch_5.1.12b/src/scotch/gscat.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gtst.c b/external_libs/scotch_5.1.12b/src/scotch/gtst.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/gtst.h b/external_libs/scotch_5.1.12b/src/scotch/gtst.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mcv.c b/external_libs/scotch_5.1.12b/src/scotch/mcv.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mcv.h b/external_libs/scotch_5.1.12b/src/scotch/mcv.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mmk_m2.c b/external_libs/scotch_5.1.12b/src/scotch/mmk_m2.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mmk_m2.h b/external_libs/scotch_5.1.12b/src/scotch/mmk_m2.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mmk_m3.c b/external_libs/scotch_5.1.12b/src/scotch/mmk_m3.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mmk_m3.h b/external_libs/scotch_5.1.12b/src/scotch/mmk_m3.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mord.c b/external_libs/scotch_5.1.12b/src/scotch/mord.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mord.h b/external_libs/scotch_5.1.12b/src/scotch/mord.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mtst.c b/external_libs/scotch_5.1.12b/src/scotch/mtst.c
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/src/scotch/mtst.h b/external_libs/scotch_5.1.12b/src/scotch/mtst.h
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/SP2_16.txt b/external_libs/scotch_5.1.12b/tgt/SP2_16.txt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/T3D_64.tgt b/external_libs/scotch_5.1.12b/tgt/T3D_64.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/h1.tgt b/external_libs/scotch_5.1.12b/tgt/h1.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/h10.tgt b/external_libs/scotch_5.1.12b/tgt/h10.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/h2.tgt b/external_libs/scotch_5.1.12b/tgt/h2.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/h3.tgt b/external_libs/scotch_5.1.12b/tgt/h3.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/h5.tgt b/external_libs/scotch_5.1.12b/tgt/h5.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/h6.tgt b/external_libs/scotch_5.1.12b/tgt/h6.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/h7.tgt b/external_libs/scotch_5.1.12b/tgt/h7.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/h8.tgt b/external_libs/scotch_5.1.12b/tgt/h8.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/h9.tgt b/external_libs/scotch_5.1.12b/tgt/h9.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k1.tgt b/external_libs/scotch_5.1.12b/tgt/k1.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k12.tgt b/external_libs/scotch_5.1.12b/tgt/k12.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k128.tgt b/external_libs/scotch_5.1.12b/tgt/k128.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k16.tgt b/external_libs/scotch_5.1.12b/tgt/k16.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k2.tgt b/external_libs/scotch_5.1.12b/tgt/k2.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k24.tgt b/external_libs/scotch_5.1.12b/tgt/k24.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k256.tgt b/external_libs/scotch_5.1.12b/tgt/k256.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k32.tgt b/external_libs/scotch_5.1.12b/tgt/k32.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k4.tgt b/external_libs/scotch_5.1.12b/tgt/k4.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k48.tgt b/external_libs/scotch_5.1.12b/tgt/k48.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k512.tgt b/external_libs/scotch_5.1.12b/tgt/k512.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k6.tgt b/external_libs/scotch_5.1.12b/tgt/k6.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k64.tgt b/external_libs/scotch_5.1.12b/tgt/k64.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k7.tgt b/external_libs/scotch_5.1.12b/tgt/k7.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k8.tgt b/external_libs/scotch_5.1.12b/tgt/k8.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/k96.tgt b/external_libs/scotch_5.1.12b/tgt/k96.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m10x10.tgt b/external_libs/scotch_5.1.12b/tgt/m10x10.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m10x20.tgt b/external_libs/scotch_5.1.12b/tgt/m10x20.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m11x13.tgt b/external_libs/scotch_5.1.12b/tgt/m11x13.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m16x16.tgt b/external_libs/scotch_5.1.12b/tgt/m16x16.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m16x32.tgt b/external_libs/scotch_5.1.12b/tgt/m16x32.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m17x19.tgt b/external_libs/scotch_5.1.12b/tgt/m17x19.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m19x21.tgt b/external_libs/scotch_5.1.12b/tgt/m19x21.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m19x31.tgt b/external_libs/scotch_5.1.12b/tgt/m19x31.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m21x23.tgt b/external_libs/scotch_5.1.12b/tgt/m21x23.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m23x25.tgt b/external_libs/scotch_5.1.12b/tgt/m23x25.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m24x24.tgt b/external_libs/scotch_5.1.12b/tgt/m24x24.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m25x27.tgt b/external_libs/scotch_5.1.12b/tgt/m25x27.tgt
similarity index 100%
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m27x29.tgt b/external_libs/scotch_5.1.12b/tgt/m27x29.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m27x29.tgt
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diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m29x31.tgt b/external_libs/scotch_5.1.12b/tgt/m29x31.tgt
similarity index 100%
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rename to external_libs/scotch_5.1.12b/tgt/m29x31.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m2x2.tgt b/external_libs/scotch_5.1.12b/tgt/m2x2.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m2x2.tgt
rename to external_libs/scotch_5.1.12b/tgt/m2x2.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m2x4x8.tgt b/external_libs/scotch_5.1.12b/tgt/m2x4x8.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m2x4x8.tgt
rename to external_libs/scotch_5.1.12b/tgt/m2x4x8.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m32x32.tgt b/external_libs/scotch_5.1.12b/tgt/m32x32.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m32x32.tgt
rename to external_libs/scotch_5.1.12b/tgt/m32x32.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m3x3.tgt b/external_libs/scotch_5.1.12b/tgt/m3x3.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m3x3.tgt
rename to external_libs/scotch_5.1.12b/tgt/m3x3.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m4x4.tgt b/external_libs/scotch_5.1.12b/tgt/m4x4.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m4x4.tgt
rename to external_libs/scotch_5.1.12b/tgt/m4x4.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m4x8.tgt b/external_libs/scotch_5.1.12b/tgt/m4x8.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m4x8.tgt
rename to external_libs/scotch_5.1.12b/tgt/m4x8.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m5x5.tgt b/external_libs/scotch_5.1.12b/tgt/m5x5.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m5x5.tgt
rename to external_libs/scotch_5.1.12b/tgt/m5x5.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m5x7.tgt b/external_libs/scotch_5.1.12b/tgt/m5x7.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m5x7.tgt
rename to external_libs/scotch_5.1.12b/tgt/m5x7.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m64x64.tgt b/external_libs/scotch_5.1.12b/tgt/m64x64.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m64x64.tgt
rename to external_libs/scotch_5.1.12b/tgt/m64x64.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m8x16.tgt b/external_libs/scotch_5.1.12b/tgt/m8x16.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m8x16.tgt
rename to external_libs/scotch_5.1.12b/tgt/m8x16.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m8x8.tgt b/external_libs/scotch_5.1.12b/tgt/m8x8.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m8x8.tgt
rename to external_libs/scotch_5.1.12b/tgt/m8x8.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m9x11.tgt b/external_libs/scotch_5.1.12b/tgt/m9x11.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m9x11.tgt
rename to external_libs/scotch_5.1.12b/tgt/m9x11.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/m9x7.tgt b/external_libs/scotch_5.1.12b/tgt/m9x7.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/m9x7.tgt
rename to external_libs/scotch_5.1.12b/tgt/m9x7.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/p128.tgt b/external_libs/scotch_5.1.12b/tgt/p128.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/p128.tgt
rename to external_libs/scotch_5.1.12b/tgt/p128.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/p16.tgt b/external_libs/scotch_5.1.12b/tgt/p16.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/p16.tgt
rename to external_libs/scotch_5.1.12b/tgt/p16.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/p2.tgt b/external_libs/scotch_5.1.12b/tgt/p2.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/p2.tgt
rename to external_libs/scotch_5.1.12b/tgt/p2.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/p256.tgt b/external_libs/scotch_5.1.12b/tgt/p256.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/p256.tgt
rename to external_libs/scotch_5.1.12b/tgt/p256.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/p32.tgt b/external_libs/scotch_5.1.12b/tgt/p32.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/p32.tgt
rename to external_libs/scotch_5.1.12b/tgt/p32.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/p4.tgt b/external_libs/scotch_5.1.12b/tgt/p4.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/p4.tgt
rename to external_libs/scotch_5.1.12b/tgt/p4.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/p512.tgt b/external_libs/scotch_5.1.12b/tgt/p512.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/p512.tgt
rename to external_libs/scotch_5.1.12b/tgt/p512.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/p64.tgt b/external_libs/scotch_5.1.12b/tgt/p64.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/p64.tgt
rename to external_libs/scotch_5.1.12b/tgt/p64.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/p8.tgt b/external_libs/scotch_5.1.12b/tgt/p8.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/p8.tgt
rename to external_libs/scotch_5.1.12b/tgt/p8.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/t2x4x8.tgt b/external_libs/scotch_5.1.12b/tgt/t2x4x8.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/t2x4x8.tgt
rename to external_libs/scotch_5.1.12b/tgt/t2x4x8.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/t4x4x4.tgt b/external_libs/scotch_5.1.12b/tgt/t4x4x4.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/t4x4x4.tgt
rename to external_libs/scotch_5.1.12b/tgt/t4x4x4.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/vcmplt.tgt b/external_libs/scotch_5.1.12b/tgt/vcmplt.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/vcmplt.tgt
rename to external_libs/scotch_5.1.12b/tgt/vcmplt.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/vhcub.tgt b/external_libs/scotch_5.1.12b/tgt/vhcub.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/vhcub.tgt
rename to external_libs/scotch_5.1.12b/tgt/vhcub.tgt
diff --git a/src/meshfem2D/scotch_5.1.12b/tgt/void.tgt b/external_libs/scotch_5.1.12b/tgt/void.tgt
similarity index 100%
rename from src/meshfem2D/scotch_5.1.12b/tgt/void.tgt
rename to external_libs/scotch_5.1.12b/tgt/void.tgt
diff --git a/setup/config.h.in b/setup/config.h.in
index af32ce49b..10968810c 100644
--- a/setup/config.h.in
+++ b/setup/config.h.in
@@ -20,10 +20,10 @@
 /* Define if err.h */
 #undef HAVE_ERR
 
-/* Define to 1 if you have the < inttypes.h > header file. */
+/* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
-/* Define to 1 if you have the < memory.h > header file. */
+/* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 
 /* Define if you have POSIX threads libraries and header files. */
@@ -32,25 +32,25 @@
 /* defined if Scotch is installed */
 #undef HAVE_SCOTCH
 
-/* Define to 1 if you have the < stdint.h > header file. */
+/* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
 
-/* Define to 1 if you have the < stdlib.h > header file. */
+/* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
-/* Define to 1 if you have the < strings.h > header file. */
+/* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H
 
-/* Define to 1 if you have the < string.h > header file. */
+/* Define to 1 if you have the <string.h> header file. */
 #undef HAVE_STRING_H
 
-/* Define to 1 if you have the < sys/stat.h > header file. */
+/* Define to 1 if you have the <sys/stat.h> header file. */
 #undef HAVE_SYS_STAT_H
 
-/* Define to 1 if you have the < sys/types.h > header file. */
+/* Define to 1 if you have the <sys/types.h> header file. */
 #undef HAVE_SYS_TYPES_H
 
-/* Define to 1 if you have the < unistd.h > header file. */
+/* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 
 /* Define if xmmintrin.h */
@@ -78,6 +78,24 @@
    your system. */
 #undef PTHREAD_CREATE_JOINABLE
 
+/* Define GIT branch for package source. */
+#undef SPECFEM2D_GIT_BRANCH
+
+/* Define date of GIT commit for package source. */
+#undef SPECFEM2D_GIT_DATE
+
+/* Define GIT hash for package source. */
+#undef SPECFEM2D_GIT_HASH
+
+/* Define git revision commit for package source. */
+#undef SPECFEM2D_GIT_REVISION
+
+/* Set to 0 if source is from GIT, 1 otherwise. */
+#undef SPECFEM2D_RELEASE_VERSION
+
+/* Define SPECFEM2D version */
+#undef SPECFEM2D_VERSION
+
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 
diff --git a/src/specfem2D/rules.mk b/src/specfem2D/rules.mk
index 10814fd0f..160f1dc38 100644
--- a/src/specfem2D/rules.mk
+++ b/src/specfem2D/rules.mk
@@ -36,8 +36,8 @@ S := ${S_TOP}/src/specfem2D
 $(specfem2D_OBJECTS): S := ${S_TOP}/src/specfem2D
 
 # libjpeg file directory
-LIBJPEG = ${S_TOP}/src/specfem2D/libjpeg
-$(JPEGLIB_OBJECTS): S := ${S_TOP}/src/specfem2D/libjpeg
+S_LIBJPEG = ${S_TOP}/external_libs/libjpeg
+$(JPEGLIB_OBJECTS): S := ${S_TOP}/external_libs/libjpeg
 
 
 ####
@@ -367,7 +367,7 @@ $O/%.spec.o: $S/%.F90 ${SETUP}/constants.h $O/specfem2D_par.spec_module.o
 	${F90} ${FCFLAGS_f90} -c -o $@ $<
 
 $O/%.cc.o: $S/%.c ${SETUP}/config.h
-	${CC} ${CFLAGS} -c -o $@ $<
+	${CC} ${CFLAGS} -I${S_LIBJPEG} -c -o $@ $<
 
 ###
 ### CUDA 5 only
@@ -381,5 +381,5 @@ $(cuda_specfem2D_DEVICE_OBJ): $(cuda_OBJECTS)
 ## JPEG library files
 ##
 
-$O/%.cc_jpeg.o: $S/libjpeg/%.c
-	${CC} -c $(CFLAGS) -I${LIBJPEG} -o $@ $<
+$O/%.cc_jpeg.o: $(S_LIBJPEG)/%.c
+	${CC} -c $(CFLAGS) -I${S_LIBJPEG} -o $@ $<
diff --git a/src/specfem2D/write_jpeg_image.c b/src/specfem2D/write_jpeg_image.c
index a043b070a..c56faac63 100644
--- a/src/specfem2D/write_jpeg_image.c
+++ b/src/specfem2D/write_jpeg_image.c
@@ -35,7 +35,7 @@
 
 #include "config.h"
 #include <stdio.h>
-#include "libjpeg/jpeglib.h"
+#include "jpeglib.h"
 #include <stdlib.h>
 #include <ctype.h>