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-rw-r--r--source3/lib/replace/libreplace_macros.m417
1 files changed, 12 insertions, 5 deletions
diff --git a/source3/lib/replace/libreplace_macros.m4 b/source3/lib/replace/libreplace_macros.m4
index 92fecd3db8..54e6b7ac75 100644
--- a/source3/lib/replace/libreplace_macros.m4
+++ b/source3/lib/replace/libreplace_macros.m4
@@ -248,11 +248,18 @@ m4_define([AH_CHECK_FUNC_EXT],
dnl Define an AC_DEFINE with ifndef guard.
dnl AC_N_DEFINE(VARIABLE [, VALUE])
-define(AC_N_DEFINE,
-[cat >> confdefs.h <<\EOF
-[#ifndef] $1
-[#define] $1 ifelse($#, 2, [$2], $#, 3, [$2], 1)
-[#endif]
+AC_DEFUN([AC_N_DEFINE],
+[
+AH_VERBATIM([$1], [
+#ifndef $1
+# undef $1
+#endif
+])
+
+ cat >>confdefs.h <<\EOF
+#ifndef $1
+[#define] $1 m4_if($#, 1, 1, [$2])
+#endif
EOF
])