gcc-4.5-RH in F14

[Jakub Jelinek]

Hi!

F14 now has gcc-4.5-RH compiler instead of 4.4-RH.
For the changes (especially user visible ones), see
http://gcc.gnu.org/gcc-4.5/changes.html
(though the list contains even many features that have been
backported to 4.4-RH.  I had to backport even over 100 of changes
that were backported to 4.4-RH from trunk already, but aren't on
4.5 branch).  Unless using decimal float, the compiler should be ABI
compatible with 4.4-RH, including the libraries (which ought to be backwards
compatible).

If you experience any internal compiler errors or other compiler bugs,
please file them into bugzilla.

Please don't rely on LTO in 4.5, it is not mature enough (especially -fwhopr
is completely unusable, -flto only barely so), things will get better
in GCC 4.6.

	Jakub