From 7ea8fe71a2e2f0ed4013cb9dcdea046c846e3c14 Mon Sep 17 00:00:00 2001
From: Andreas Hasenack <andreas.hasenack@canonical.com>
Date: Wed, 17 Apr 2024 20:49:13 -0300
Subject: [PATCH] configure.ac: fix gettimeofday() args detection

The configure check for gettimeofday() was failing not because of the
arguments, but because exit() was undeclared.

conftest.c: In function 'main':
conftest.c:177:20: error: implicit declaration of function 'exit' [-Werror=implicit-function-declaration]
  177 | struct timeval tv; exit(gettimeofday(&tv, NULL));
      | ^~~~
conftest.c:174:1: note: include '<stdlib.h>' or provide a declaration of 'exit'
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index cc685cb..b240cbe 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1148,6 +1148,7 @@ AC_CACHE_CHECK([if gettimeofday takes tz argument],rsync_cv_HAVE_GETTIMEOFDAY_TZ
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/time.h>
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#include <stdlib.h>
 #endif]], [[struct timeval tv; return gettimeofday(&tv, NULL);]])],[rsync_cv_HAVE_GETTIMEOFDAY_TZ=yes],[rsync_cv_HAVE_GETTIMEOFDAY_TZ=no])])
 if test x"$rsync_cv_HAVE_GETTIMEOFDAY_TZ" != x"no"; then
     AC_DEFINE(HAVE_GETTIMEOFDAY_TZ, 1, [Define to 1 if gettimeofday() takes a time-zone arg])