I just tried to compile Suse Linux package lynx-2.8.6_rel2-23 with the GNU C compiler version 4.3 snapshot 20070119.
The compiler said gcc -DLINUX -D_GNU_SOURCE -DHAVE_CONFIG_H -I../.. -I../../src -I../../src/chrtrans -I../../WWW/Library/Implementation -I../../ -O3 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -pipe -c ./makeuctb.c ./makeuctb.c: In function 'main': ./makeuctb.c:253: internal compiler error: in extract_range_from_assert, at tree-vrp.c:820 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=30564