I just tried to compile Suse Linux package physfs-1.0.1 with the GNU C compiler version 4.3 snapshot 20070629
The compiler said gcc -DHAVE_CONFIG_H -I. -I. -I.. -I.. -O3 -g -fmessage-length=0 -D_FORTIFY_SOURCE=2 -D_REENTRANT -D_THREAD_SAFE -MT zip.lo -MD -MP -MF .deps/zip.Tpo -c zip.c -fPIC -DPIC -o .libs/zip.o zip.c: In function 'zip_find_end_of_central_dir': zip.c:418: internal compiler error: vector VEC(tree,base) index domain error, in build_classic_dist_vector_1 at tree-data-ref.c:2706 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. Preprocessed source code attached. Flag -O3 required. -- Summary: ice for legal code with -O3 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dcb314 at hotmail dot com GCC host triplet: x86_64-suse-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32573