From 792455ce8760ecba3e432a6c430fb4b6e95a1bc3 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Sat, 18 Mar 2017 14:37:37 +0000
Subject: Tweak test for program_invocation_short_name.

---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index de623a67..678c48bd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -615,9 +615,9 @@ AC_LINK_IFELSE([AC_LANG_SOURCE(
 AC_MSG_CHECKING(for program_invocation_short_name)
 AC_LINK_IFELSE([AC_LANG_SOURCE(
 	[
+		#include <errno.h>
 		#include <stdio.h>
 		#include <stdlib.h>
-		extern char *program_invocation_short_name;
 		int main(void) {
 			const char *cp = program_invocation_short_name;
 			printf("%s\n", cp);
-- 
cgit