When the pymol/layer0/Triangle.c source file is compiled with "-O3 -fgraphite", the gcc compiler in current gcc trunk (r141700) has the following ICE....
Triangle.c: In function FollowActives: Triangle.c:1436: internal compiler error: in build_graphite_scops, at graphite.c:1852 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. This ICE doesn't current with "-O2 -fgraphite". -- Summary: Triangle.c in pymol 1.1r2 ICEs compiler n build_graphite_scops, at graphite.c:1852 Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: howarth at nitro dot med dot uc dot edu GCC build triplet: i686-apple-darwin9 GCC host triplet: i686-apple-darwin9 GCC target triplet: i686-apple-darwin9 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38061