Eric Blake f6e7865d27 build: allow building with newer glibc-headers and -O0 ... glibc 2.15 (on Fedora 17) coupled with explicit disabling of optimization during development dies a painful death: In file included from /usr/include/limits.h:27:0, from /usr/lib/gcc/x86_64-redhat-linux/4.7.0/include/limits.h:169, from /usr/lib/gcc/x86_64-redhat-linux/4.7.0/include/syslimits.h:7, from /usr/lib/gcc/x86_64-redhat-linux/4.7.0/include/limits.h:34, from util/bitmap.c:26: /usr/include/features.h:314:4: error: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Werror=cpp] cc1: all warnings being treated as errors Work around this by only conditionally defining _FORTIFY_SOURCE, in the case where glibc can actually use it. The trick is using AH_VERBATIM instead of AC_DEFINE. * m4/virt-compile-warnings.m4 (LIBVIRT_COMPILE_WARNINGS): Squelch _FORTIFY_SOURCE when needed to avoid glibc #warnings. (cherry picked from commit 2af63b1c34)		2012-06-14 18:23:21 -04:00
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virt-compile-warnings.m4	build: allow building with newer glibc-headers and -O0	2012-06-14 18:23:21 -04:00
virt-pkgconfig-back-compat.m4	Remove acinclude.m4 file	2011-04-05 11:39:44 +01:00