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authorDaniel P. Berrange <berrange@redhat.com>2011-04-05 16:00:58 +0100
committerDaniel P. Berrange <berrange@redhat.com>2011-04-05 17:43:40 +0100
commitdba5ba62bbf36c95879c4dea560721f2e970fbc5 (patch)
tree8b20435f150335e07404abaef65a9fd7abc249fc /m4
parentAvoid compiler warnings about int -> void * casts (diff)
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Don't try to enable stack protector on Win32
The GCC Win32 compiler will claim to support -fstack-protector, but if it actually gets triggered by a suitable code pattern, linking will fail. Other non-Linux OS likely suffer the same way with gcc. * m4/virt-compile-warnings.m4: Only use stack protector when the build target is Linux.
Diffstat (limited to 'm4')
-rw-r--r--m4/virt-compile-warnings.m416
1 files changed, 11 insertions, 5 deletions
diff --git a/m4/virt-compile-warnings.m4 b/m4/virt-compile-warnings.m4
index 7e252d551..819da8fc7 100644
--- a/m4/virt-compile-warnings.m4
+++ b/m4/virt-compile-warnings.m4
@@ -98,11 +98,17 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
# Extra special flags
gl_WARN_ADD([-Wp,-D_FORTIFY_SOURCE=2])
- dnl Fedora only uses -fstack-protector, but doesn't seem to
- dnl be great overhead in adding -fstack-protector-all instead
- dnl gl_WARN_ADD([-fstack-protector])
- gl_WARN_ADD([-fstack-protector-all])
- gl_WARN_ADD([--param=ssp-buffer-size=4])
+ dnl -fstack-protector stuff passes gl_WARN_ADD with gcc
+ dnl on Mingw32, but fails when actually used
+ case $host in
+ *-*-linux*)
+ dnl Fedora only uses -fstack-protector, but doesn't seem to
+ dnl be great overhead in adding -fstack-protector-all instead
+ dnl gl_WARN_ADD([-fstack-protector])
+ gl_WARN_ADD([-fstack-protector-all])
+ gl_WARN_ADD([--param=ssp-buffer-size=4])
+ ;;
+ esac
gl_WARN_ADD([-fexceptions])
gl_WARN_ADD([-fasynchronous-unwind-tables])
gl_WARN_ADD([-fdiagnostics-show-option])