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-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 2bb37935e..4b90b723c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -125,6 +125,7 @@ AC_ENABLE_SHARED dnl do build shared libraries
AC_DISABLE_STATIC dnl don't build static libraries
m4_ifdef([LT_INIT],[LT_INIT],[AC_PROG_LIBTOOL])
GR_FORTRAN
+AC_PROG_CC dnl ensure $ac_ext set correctly after Fortran test
GR_NO_UNDEFINED dnl do we need the -no-undefined linker flag
GR_SCRIPTING