tweak default cmake compiler options
tweak default cmake compiler options


git-svn-id: 7720f8ced686bbe1e9a8fc98aef2dd4d5d9a3e92@11 995b7d7e-cf50-0410-b6c9-9f4ebe303554

svn2github/libsquish,svn2github/libsquish,svn2github/libsquish