Compile the to-be-attached test case, and you get an ICE in the front end after errors:
jigdo-file.cc: At global scope: jigdo-file.cc:491: error: 'class JigdoFileCmd::Command' is not a class or namespace jigdo-file.cc:491: error: ISO C++ forbids declaration of 'cmdOptions' with no type int<unnamed>::cmdOptions(int, char**) jigdo-file.cc:493: error: 'binaryName' was not declared in this scope jigdo-file.cc:496: error: 'optReporter' was not declared in this scope jigdo-file.cc:546: error: 'optZipQuality' was not declared in this scope jigdo-file.cc:547: internal compiler error: tree check: expected class 'type', have 'exceptional' (error_mark) in decl_jump_unsafe, at cp/decl.c:2153 -- Summary: [4.1 regression] ICE in decl_jump_unsafe Product: gcc Version: 4.1.0 Status: UNCONFIRMED Keywords: ice-on-invalid-code Severity: minor Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: steven at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24582