[lxc-devel] [lxc/master] lxc: fix build with --disable-werror
ffontaine on Github
lxc-bot at linuxcontainers.org
Sat Sep 8 19:13:12 UTC 2018
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From 218e814412afe2857c118fc08759a943349f3ca0 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice at gmail.com>
Date: Sat, 8 Sep 2018 21:05:58 +0200
Subject: [PATCH] lxc: fix build with --disable-werror
Fix #2592 by defining -Wvla -std=gnu11 even if --disable-werror is set
As -std=gnu11 is always set, bump requirement on gcc from 4.6 to 4.7
(see https://gcc.gnu.org/projects/cxx-status.html#cxx11)
Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
configure.ac | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/configure.ac b/configure.ac
index 54964fb40..502b9ae1d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -53,7 +53,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#define CLANG_VERSION \
(__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
-#if GCC_VERSION < 40600 && CLANG_VERSION < 10000
+#if GCC_VERSION < 40700 && CLANG_VERSION < 10000
#error Sorry, your compiler is too old - please upgrade it
#endif
]])], [valid_compiler=yes], [valid_compiler=no])
@@ -683,8 +683,9 @@ AC_PROG_SED
# See if we support thread-local storage.
LXC_CHECK_TLS
+CFLAGS="$CFLAGS -Wvla -std=gnu11"
if test "x$enable_werror" = "xyes"; then
- CFLAGS="$CFLAGS -Werror -Wvla -std=gnu11"
+ CFLAGS="$CFLAGS -Werror"
fi
AC_ARG_ENABLE([thread-safety],
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