Pull up following revision(s) (requested by christos in ticket #1048):
external/gpl3/gcc/dist/gcc/config/i386/cpuid.h: revision 1.2
Fix logic bug where __cpuid gets called when __get_cpuid_max() returns 0.
This happens when __level == 0, from libgcc/config/i386/cpuinfo.c#285.
This breaks early i486 CPUs which don't have cpuid

(snj)