Tweak test for program_invocation_short_name.

2017-03-18 14:37:37 +00:00 · 2017-03-18 14:37:37 +00:00 · 792455ce87
parent 4eec3270ec
commit 792455ce87
1 changed files with 1 additions and 1 deletions
--- 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);