https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64690
Bug ID: 64690 Summary: -freport-bug issue with comments Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: driver Assignee: unassigned at gcc dot gnu.org Reporter: jakub at gcc dot gnu.org CC: chefmax at gcc dot gnu.org As -freport-bug dumps also the error output into the file as /* ... */ comment, there is a problem if that text includes /* or */ character sequences. E.g. take PR64688 testcase, add /* */ before last line, so it reads: /* */ void performance_testtest_method() { test_fill<K<int>, Q<unsigned, int>>(0); } ./xg++ -B ./ -S -O3 -march=westmere pr64688.C -std=c++11 -freport-bug gives err file that contains /* ... /* */ void performance_testtest_method() { test_fill<K<int>, Q<unsigned, int>>(0); } ... */ Perhaps /* and */ in the output should be replaced by something that won't be parsed as comment beginning or end, like //^H* and **^H/ ? ^H meaning literal backspace (\x08) char, so that at least when you cat it to terminal you won't notice the difference.