[libvirt] [PATCH] Fix build with clang

Partially revert cdd703f's revert of c163410, as linking with clang with --param=ssp-buffer-size=4 still fails with: "argument unused during compilation". --- This is technically a build-breaker fix, but I haven't pushed it yet, to prevent reverting a revert of a revert. m4/virt-compile-warnings.m4 | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/m4/virt-compile-warnings.m4 b/m4/virt-compile-warnings.m4 index c6794b7..8731b70 100644 --- a/m4/virt-compile-warnings.m4 +++ b/m4/virt-compile-warnings.m4 @@ -185,6 +185,13 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[ dnl gl_WARN_ADD([-fstack-protector]) gl_WARN_ADD([-fstack-protector-all]) gl_WARN_ADD([--param=ssp-buffer-size=4]) + dnl Even though it supports it, clang complains about + dnl use of --param=ssp-buffer-size=4 unless used with + dnl the -c arg. It doesn't like it when used with args + dnl that just link together .o files. Unfortunately + dnl we can't avoid that with automake, so we must turn + 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 -- 1.8.1.5