From: Mark Andrews <marka@isc.org>
Date: Wed, 16 May 2018 03:50:13 +0000 (+1000)
Subject: don't produce a false negative for %z with CFLAGS=-Werror
X-Git-Tag: v9.9.13rc1~25^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d4ae45a2b7fe68b783c92c03048ae95dcbd0e7a0;p=thirdparty%2Fbind9.git

don't produce a false negative for %z with CFLAGS=-Werror

(cherry picked from commit 800012de23ef63ff6d34dd7dac99cd2291955640)
---

diff --git a/configure.in b/configure.in
index 69d7e742b09..0943ebb98de 100644
--- a/configure.in
+++ b/configure.in
@@ -2878,12 +2878,14 @@ AC_CHECK_FUNC(vsnprintf, [],
 AC_MSG_CHECKING(printf for %z support)
 AC_TRY_RUN([
 #include <stdio.h>
+
+int
 main() {
 	size_t j = 0;
 	char buf[100];
 	buf[0] = 0;
 	sprintf(buf, "%zu", j);
-	exit(strcmp(buf, "0") != 0);
+	return ((buf[0] == '0' && buf[1] == '\0') ? 0 : 1);
 }
 ],
 	[AC_MSG_RESULT(yes)],