I just tried to compile Suse Linux package opensc-0.11.6-4.5 with the GNU gcc version 4.4.0 snapshot 20081114
It said asn1.c: In function 'asn1_decode': asn1.c:1148: internal compiler error: in gimple_call_return_type, at gimple.h:1993 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Preprocessed source code attached. Flag -O2 required. -- Summary: ice for C code with -O2 Product: gcc Version: 4.4.0 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: suse-linux-x86_64 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38140