[arch-dev-public] [signoff] mpfr-3.0.0-1, gcc-4.5.0-6 and libmpc-0.8.2-2

[Allan McRae]

mpfr-3.0.0-1:
upstream update, passes entire testsuite.

gcc-4.5.0-6:
update to 20100610 snapshot, patch to fix khtml/chromium issues (please 
test).

libmpc-0.8.2-2:
mpfr rebuild only