[LinuxBIOS] help from ubuntu and FC6 experts
segher at kernel.crashing.org
Wed Jan 24 17:10:27 CET 2007
>> So you should just try it out somewhere in your build system --
>> gcc -fno-stack-protector -S -xc - < /dev/null -o /dev/null or
>> something similar, grab the return code -- and that's all you need
>> to do.
> we'd always managed to avoid this kind of ugliness, but I guess we
> have no choice.
Indeed. This hurts many more projects btw, not just us.
> What's going to get interesting is when the form that this test takes
> gets broken by the various distros :-)
The test isn't distro-specific; but I'm sure *some* distro
(Gentoo? ;-) ) will break it.
> Some expert person want to try out a fix? If not, I guess I will.
With Kbuild it's really easy (just copy the one-liner from
the Linux kernel code); but for v2, you'll need to do a
little more work (but you can use the same mechanism, of
course -- copy on of the cc-option macros and you're fine).
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