(This is a patch from Nix <nix@esperi.demon.co.uk>) * compiler-flags.m4 (GNOME_CXX_WARNINGS): Brought C++ language compliance into line with C language compliance. Fixed typo (`C' for `C++'). (--enable-iso-cxx): New flag to *permit* -pedantic rather than requiring it. svn path=/trunk/; revision=304