Description of Problem:

When trying to rebuild glibc-2.2.4-20.src.rpm with gcc-3.1-0.10 I get:

| $ rpm --rebuild glibc-2.2.4-20.src.rpm
| ...
| checking for mig... mig
| *** This version of GNU libc cannot be compiled by GCC 3.x.
| *** GCC 3.x will generate a library that is binary incompatible to
| *** older and future releases of GNU libc.
| *** You should compile this GNU libc release by an older GCC version
| *** or wait for the next GNU libc release.
| *** If you really mean to use GCC 3.x, run configure again
| *** using the extra parameter `--disable-sanity-checks'.
| error: Bad exit status from /var/tmp/rpm-tmp.3649 (%build)
|     Bad exit status from /var/tmp/rpm-tmp.3649 (%build)