[Pixman] clang 3.0: Unsupported asm: input constraint with a matching output constraint of incompatible type!

[Jeremy Huddleston]

My tinderbox (yuffie) is building pixman master using clang-3.0 (from MacPorts) for x86_64:

http://tinderbox.x.org/builds/2012-05-30-0005/logs/pixman/#build

I don't believe the changes were ever reverted.  Perhaps there is an additional issue that I'm not seeing.  Are you seeing this if you use configure.compiler=macports-clang-3.0? -2.9?

On May 30, 2012, at 03:51, Ryan Schmidt <pixman-2012b at ryandesign.com> wrote:

> Hi, I'm the maintainer of pixman in MacPorts. I just updated our pixman port to 0.26.0. Unfortunately I now find that it does not build with clang 3.0:
> 
> http://build.macports.org/builders/buildports-lion-x86_64/builds/1324/steps/compile/logs/stdio
> 
> fatal error: error in backend: Unsupported asm: input constraint with a matching output constraint of incompatible type!
> 
> It appears this problem was known to the developers of pixman in February:
> 
> http://lists.freedesktop.org/archives/pixman/2012-February/001765.html
> 
> I see that various fixes were committed, then reverted when it was reported that clang 3.1 would no longer have this problem.
> 
> That's nice, but Apple has not yet released a version of Xcode containing clang 3.1, and even once they do, I would want to continue to support the use of older Xcode versions for the foreseeable future.
> 
> What patch should we apply to make pixman 0.26.0 compile with clang 3.0?
> 
> 
>