use GMP flags when compiling isl_test

diff --git a/Makefile.am b/Makefile.am
index e6e3dca..7f78b80 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -76,7 +76,7 @@ libisl_la_CPPFLAGS = -I$(srcdir)/include -Iinclude/ \
        @PIPLIB_CPPFLAGS@ @POLYLIB_CPPFLAGS@ \
        @GMP_CPPFLAGS@
 
-isl_test_CPPFLAGS = -I$(srcdir)/include -Iinclude/
+isl_test_CPPFLAGS = -I$(srcdir)/include -Iinclude/ @GMP_CPPFLAGS@
 isl_test_LDADD = libisl.la
 
 nodist_pkginclude_HEADERS = \