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-rw-r--r--acinclude.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/acinclude.m4 b/acinclude.m4
index cd0230053..4ac611dd2 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -155,7 +155,7 @@ AC_DEFUN([AC_TRY_LDFLAGS],
# and this notice are preserved. This file is offered as-is, without any
# warranty.
-#serial 3
+serial 3
AC_DEFUN([AX_GCC_BUILTIN], [
AS_VAR_PUSHDEF([ac_var], [ax_cv_have_$1])