https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68968
Bug ID: 68968 Summary: Internal Compiler error Product: gcc Version: 5.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: fkrogh#gcc at mathalacarte dot com Target Milestone: --- Created attachment 37073 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37073&action=edit Compile this as indicated in the comments and get a segmentation fault in the compiler test.F90 attached gives an internal compiler error (Segmentation fault) when compiled with gfortran -Dplet_=\'q\' -o test test.F90 If gfortran is replaced by cpp in the above, it seems to generate what one would expect.