Comment 104 for bug 213708

Figured out the problem. profiledbuild doesn't work on GCC 4.3 because the build system occasionally drops the -fprofile-generate flags(ie while building parts of nss) which then confuses things at link time(newer compilers seem to be more lenient there).
Unfortunately even if one does pass the pgo options everywhere, the second build fails because gcc 4.3 does not have -Wcoverage-mismatch. Figuring out what compiler we should switch to now (4.5 or 4.4).