[libvirt] gnulib compiler warning detection broken on RHEL5 autoconf

I was wondering why I didn't see any compile warnings from the broken gnutls code on RHEL5 when I noticed that we were building without any compiler warning flags at all. It seems configure fails on RHEL5 vintage autoconf checking whether compiler handles -Wall... ./configure: line 75468: ${$as_gl_Warn+set}: bad substitution I'm guessing it is the gl_WARN_ADD() macro that is at fault somehow. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|