From: Florian Weimer <fweimer@redhat.com>
Date: Thu, 8 Dec 2022 12:01:07 +0000 (+0100)
Subject: m4/progname.m4: Include <stdio.h> for printf in lldp_CHECK___PROGNAME
X-Git-Tag: 1.0.17~16
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=01aee0f3601c60e570aeb9040c036c83d053cc5a;p=thirdparty%2Flldpd.git

m4/progname.m4: Include <stdio.h> for printf in lldp_CHECK___PROGNAME

Otherwise the checks always fails with a compiler that does not
support implict function declarations.
---

diff --git a/m4/progname.m4 b/m4/progname.m4
index 031aba65..b1a80f7f 100644
--- a/m4/progname.m4
+++ b/m4/progname.m4
@@ -4,7 +4,7 @@
 AC_DEFUN([lldp_CHECK___PROGNAME],[
   AC_CACHE_CHECK([whether libc defines __progname], lldp_cv_check___progname, [
     AC_LINK_IFELSE([AC_LANG_PROGRAM(
-                     [[]],
+                     [[#include<stdio.h>]],
                      [[ extern char *__progname; printf("%s", __progname); ]])],
                      [ lldp_cv_check___progname="yes" ],
                      [ lldp_cv_check___progname="no" ])