I just tried to compile the Suse Linux package snes9x-1.5-107 with the GNU C++ compiler version 4.3 snapshot 20071102
The compiler said spc700.cpp:977: warning: deprecated conversion from string constant to 'char*' spc700.cpp: In function 'void ApuCA()': spc700.cpp:807: error: verify_flow_info: Wrong probability of edge 12->13 -25535 spc700.cpp:807: internal compiler error: verify_flow_info failed Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Source code attached. Flag -O3 required. -- Summary: verify_flow_info failed 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: suse-linux-x86_64 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34046