From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Tue, 27 Aug 2024 12:54:07 +0000 (+0200)
Subject: configure.ac: properly evaluate ac_test_CFLAGS
X-Git-Tag: v2.16~49
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=404e82616d950cbf45b16adb11ce3a52e285e16b;p=thirdparty%2Fbird.git

configure.ac: properly evaluate ac_test_CFLAGS

Since autoconf 2.69 and
https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=76754e04fce5f6a7701bec57b057020585df2ae3
ac_test_CFLAGS is set to ${CFLAGS+y} instead of ${CFLAGS+set}.

Just test that ac_test_CFLAGS is not empty, to support both cases.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
---

diff --git a/configure.ac b/configure.ac
index 0ed4d2d74..3eeb446d3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -120,7 +120,7 @@ AC_SEARCH_LIBS([clock_gettime], [rt posix4],
 AC_CANONICAL_HOST
 
 # Store this value because ac_test_CFLAGS is overwritten by AC_PROG_CC
-if test "$ac_test_CFLAGS" != set ; then
+if ! test "$ac_test_CFLAGS" ; then
   bird_cflags_default=yes
 fi