https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68427
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |RESOLVED Resolution|--- |INVALID --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- Why are you talking about ANSI-C when this is clearly C++ code? The file gauss.cpp compiles fine for me, you must have a problem with your makefile.