"G. M. Pastor" <gustavo.pastor@xxxxxxxxxxxxxxxxxx> writes: > I am trying to comile a 64 bit version of gfortran > on a Mac OS 10.6.2 in order to compile later on mpich2. > > Following the instructions, I obtain the following errors > when running make. > > The c.txt and m.txt files are attached. > > Any hint or recommendation would be most appreciated. I have no idea what is causing that. It seems odd but I can't see any reason that it would be particularly serious. You can avoid it by passing --disable-bootstrap when you run configure. You may want to file a bug report following the instructions at http://gcc.gnu.org/bugs/ . Ian