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-rw-r--r--lib/autoconf/specific.m46
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/autoconf/specific.m4 b/lib/autoconf/specific.m4
index 2630edb5..5a9ca94d 100644
--- a/lib/autoconf/specific.m4
+++ b/lib/autoconf/specific.m4
@@ -402,9 +402,9 @@ dnl configure.ac when using autoheader 2.62.
AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
[ac_cv_safe_to_define___extensions__],
[AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([
-# define __EXTENSIONS__ 1
- AC_INCLUDES_DEFAULT])],
+ [AC_LANG_PROGRAM([[
+# define __EXTENSIONS__ 1
+ ]AC_INCLUDES_DEFAULT])],
[ac_cv_safe_to_define___extensions__=yes],
[ac_cv_safe_to_define___extensions__=no])])
test $ac_cv_safe_to_define___extensions__ = yes &&