BLD: use CPPFLAGS environment variable

Anaconda compilers set CPPFLAGS environment variable.
Use it when building and testing the package.

Author: pavoljuhas

.travis.yml

@@ -111,7 +111,7 @@ install:
         exit 1;
     fi
 
-  - $NOMC || MYCXXFLAGS="-I${MYINCLUDE} ${CXXFLAGS}"
+  - $NOMC || MYCOMPILEFLAGS="-I${MYINCLUDE} ${CXXFLAGS} ${CPPFLAGS}"
   - $NOMC || MYLINKFLAGS="-L${MYLIB} ${LDFLAGS} -Wl,-rpath,${MYLIB}"
 
 
@@ -120,7 +120,7 @@ before_script:
 
 
 script:
-  - $CXX -o testlib $MYCXXFLAGS testlib.cpp -lObjCryst $MYLINKFLAGS
+  - $CXX -o testlib $MYCOMPILEFLAGS testlib.cpp -lObjCryst $MYLINKFLAGS
   - ./testlib
 
 

src/SConscript

@@ -5,7 +5,7 @@ Import('env')
 # Build environment configuration --------------------------------------------
 
 # Apply CFLAGS, CXXFLAGS, LDFLAGS from the system environment.
-flagnames = 'CFLAGS CXXFLAGS LDFLAGS'.split()
+flagnames = 'CFLAGS CXXFLAGS CPPFLAGS LDFLAGS'.split()
 env.MergeFlags([os.environ.get(n, '') for n in flagnames])
 
 # Insert LIBRARY_PATH explicitly because some compilers