https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68126
Steve Ellcey <sje at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |sje at gcc dot gnu.org --- Comment #1 from Steve Ellcey <sje at gcc dot gnu.org> --- It looks like this is actually a bug in the GCC 4.4.7 compiler on the system where you are building GCC. gensupport.c is compiled with the system compiler in order to build gensupport which is run as part of the build. Your best bet would be to do the build with a newer system compiler if you have one.