Commit libsodium/configure to work around ancient autoconf on ci

Setup.hs

@@ -52,7 +52,6 @@ buildLibSodium = do
     sodiumDir = cwd </> "gen" </> "libsodium"
   createDirectoryIfMissing True sodiumDir
   setCurrentDirectory $ cwd </> "lib" </> "libsodium"
-  callProcess "autoreconf" ["-if"]
   callProcess "./configure" ["--prefix=" <> sodiumDir]
   callProcess "make" ["-j"]
   callProcess "make" ["install"]

lib/libsodium/.gitignore

@@ -29,21 +29,14 @@
 Build
 INSTALL
 Makefile
-Makefile.in
 Vagrantfile
 aclocal.m4
 android-toolchain
 android-toolchain-*
 autom4te.cache
 build
-compile
 confdefs.h
-config.*
-configure
-configure.lineno
 coverage.info
-depcomp
-install-sh
 libsodium-*.tar.bz2
 libsodium-*.tar.gz
 libsodium-*.vcproj
@@ -62,20 +55,10 @@ libsodium-win32
 libsodium-win64
 libsodium.pc
 libtool
-ltmain.sh
-m4/argz.m4
-m4/libtool.m4
-m4/ltoptions.m4
-m4/ltsugar.m4
-m4/ltversion.m4
-m4/lt~obsolete.m4
 man/*.html
-man/Makefile.in
-missing
 src/libsodium/*.def
 src/libsodium/include/sodium/version.h
 stamp-*
-test-driver
 test/default/browser
 test/default/*.res
 test/default/*.trs