On Thu, 2010-07-08 at 09:18 +0200, Jakub Jelinek wrote: > 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. > Just saw this on lkml? are kernel builds going to be broken? On Thu, Jul 8, 2010 at 4:33 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > > Unresolved regressions > ---------------------- > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=16353 > Subject : 2.6.35 regression > Submitter : Zeev Tarantov <zeev.tarantov@xxxxxxxxx> > Date : 2010-07-05 13:04 (4 days old) > Message-ID : <loom.20100705T144459-919@xxxxxxxxxxxxxx> > References : http://marc.info/?l=linux-kernel&m=127836002702522&w=2 This is a gcc-4.5 issue. Whether it's also something that we should change in the kernel is unclear, but at least as of now, the rule is that you cannot compile the kernel with gcc-4.5. No idea whether the compiler is just entirely broken, or whether it's just that it triggers something iffy by being overly clever. Dave. -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
