[arch-dev-public] [toolchain] gcc 4.5 breakage
thomas at archlinux.org
Wed May 5 03:26:17 EDT 2010
Am 05.05.2010 02:46, schrieb Allan McRae:
>> Now I noticed the exact same issue with busybox:
>> - Building with -Os throws lots of aliasing warnings, busybox's sed
>> - Building with -Os -fno-strict-aliasing builds without warnings, but it
>> still breaks.
>> - Building with -O0 works, but it isn't optimal.
> Interesting... Does fixing the aliasing fix this one too? I see no
> upstream bug reports that seem related so you should follow it up there.
> I will pull in a new gcc-4.5 snapshot next week when I do the
> glibc-2.12 toolchain rebuild so hopefully that may contain a fix that I
> am missing...
I can only guess. You can remove -fno-strict-aliasing from the
mkinitcpio-busybox PKGBUILD and build, then count the number of warnings
- there's hundreds.
I opened an upstream bug report, but I was so far unable to produce a
test case they can use.
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