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[libvirt] [PATCH] FreeBSD: disable buggy -fstack-protector-all



FreeBSD ships an old gcc 4.2.1 which generates
bogus code, e.g. getsockopt() call returns
struct xucred with bogus values, which doesn't even
allow to connect to libvirtd:

error: Failed to find group record for gid '1284660778': No error: 0

So roll back to just -fstack-protector on FreeBSD.
---
 m4/virt-compile-warnings.m4 | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/m4/virt-compile-warnings.m4 b/m4/virt-compile-warnings.m4
index dc0e7d7..ce4e244 100644
--- a/m4/virt-compile-warnings.m4
+++ b/m4/virt-compile-warnings.m4
@@ -191,7 +191,7 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
     dnl -fstack-protector stuff passes gl_WARN_ADD with gcc
     dnl on Mingw32, but fails when actually used
     case $host in
-       *-*-linux*|*-*-freebsd*)
+       *-*-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])
@@ -205,6 +205,13 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
        dnl off the following clang specific warning
        gl_WARN_ADD([-Wno-unused-command-line-argument])
        ;;
+       *-*-freebsd*)
+       dnl FreeBSD ships old gcc 4.2.1 which doesn't handle
+       dnl -fstack-protector-all well
+       gl_WARN_ADD([-fstack-protector])
+
+       gl_WARN_ADD([-Wno-unused-command-line-argument])
+       ;;
     esac
     gl_WARN_ADD([-fexceptions])
     gl_WARN_ADD([-fasynchronous-unwind-tables])
-- 
1.8.0


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