From f034ca39df7f6f513d0d4d4f479194592ac48645 Mon Sep 17 00:00:00 2001
From: tgoodwin <tgoodwin>
Date: Wed, 28 Oct 1998 14:15:21 +0000
Subject: use va_copy() where it exists

---
 acinclude.m4 | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'acinclude.m4')

diff --git a/acinclude.m4 b/acinclude.m4
index 60ec318..2ac2cab 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -34,3 +34,15 @@ int main(void) {
 	yes) AC_DEFINE(SETPGRP_VOID) ;;
 	esac
 ])
+
+dnl Check for va_copy() in <stdarg.h>.  This is new in C 9x.
+AC_DEFUN(RC_HAVE_VA_COPY, [
+	AC_CACHE_CHECK(for va_copy(), rc_cv_have_va_copy, AC_EGREP_CPP(yes, [
+#ifdef va_copy
+yes
+#endif
+], rc_cv_have_va_copy=yes, rc_cv_have_va_copy=no))
+	case "$rc_cv_have_va_copy" in
+	yes) AC_DEFINE(HAVE_VA_COPY) ;;
+	esac
+])
-- 
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