http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52007
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-01-26 10:41:20 UTC --- The problem you're facing is that you didn't read the documentation on installing GCC, starting at http://gcc.gnu.org/install/ and summarised at http://gcc.gnu.org/wiki/InstallingGCC We can't really help you if you don't read the documentation. The first prerequisite for compiling GCC is a working compiler. You've told configure to use CC=gcc but apparently you don't have gcc installed. That's not going to work. If it's a rhel5 box then install the gcc rpm.
