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Re: [Qemu-devel] Build failure on OS X

Subject: Re: [Qemu-devel] Build failure on OS X
From: Andreas Färber
Date: Sun, 30 Sep 2007 15:08:38 +0200

Am 30.09.2007 um 14:17 schrieb J. Mayer:

On Sun, 2007-09-30 at 14:05 +0200, Andreas Färber wrote:

Am 30.09.2007 um 13:45 schrieb J. Mayer:

Anyone any idea what might've caused this build failure? I'm fairly
certain I haven't messed with or updated the system headers.

have you just updated your CVS co ?


Please try to comment the "always_inline" definition in vl.h /
If this is what's breaking your build, I'll revert this definition.

It is, thanks for the pointer! (The source file itself didn't appear
to have been updated.)

With line 284 of math.h reading:
                static __inline__ int __inline_isfinitef        (float      )

The fact the error mentions "__attribute__" and ALWAYS_INLINE make me
think the always_inline defintion is the suspect here....

I believe Apple's GCC in general has a problem with the __attribute__
notation. The ppc*-softmmu fail to build for some time due to its use
for aliasing in hw/ppc.c. Maybe we could add a configure check for
this feature to have a conditional define? That would allow a more
elegant fix than the one I use locally and had previously suggested.

Sorry for introducing this problem...
Would this new definition solve the compilation failure ?

#ifndef always_inline
#if (__GNUC__ < 3) || defined(__APPLE__)
#define always_inline inline
#define always_inline __attribute__ (( always_inline )) inline

It does.

I've updated my patch accordingly with __APPLE__, what do you think? I have no idea what alias does exactly, should we just use a #define on the Mac?


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