From: Mark Andrews <marka@isc.org>
Date: Wed, 22 Apr 2020 03:02:18 +0000 (+1000)
Subject: Force test for -fno-delete-null-pointer-checks to fail
X-Git-Tag: v9.17.2~116^2
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=82ab846f133ea2b237472eb0dd78d000fea19d9d;p=thirdparty%2Fbind9.git

Force test for -fno-delete-null-pointer-checks to fail
---

diff --git a/configure.ac b/configure.ac
index 458bd6cda26..08365ae4771 100644
--- a/configure.ac
+++ b/configure.ac
@@ -140,7 +140,8 @@ STD_CPPFLAGS="-D_FORTIFY_SOURCE=2"
 #
 AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing],
 		      [STD_CFLAGS="$STD_CFLAGS -fno-strict-aliasing"])
-AX_CHECK_COMPILE_FLAG([-fno-delete-null-pointer-checks],
+# Clang only issues a warning so use -Werror to force a error.
+AX_CHECK_COMPILE_FLAG([-Werror -fno-delete-null-pointer-checks],
 		      [STD_CFLAGS="$STD_CFLAGS -fno-delete-null-pointer-checks"])
 AX_CHECK_COMPILE_FLAG([-fdiagnostics-show-option],
 		      [STD_CFLAGS="$STD_CFLAGS -fdiagnostics-show-option"])