http://bugs.freedesktop.org/show_bug.cgi?id=20435





--- Comment #13 from Ryan Hope <[email protected]>  2009-03-03 10:44:43 PST ---
(In reply to comment #12)
> You know what... something in the gentoo ebuild for mesa must be breaking 
> this.
> When I run ./configure manually -D_GNU_SOURCE gets defined. Sorry for wasting
> peoples time.
> 

When the ebuild configures mesa here is what gets defined:
Macros: -DHAVE_POSIX_MEMALIGN -DUSE_XCB -DUSE_EXTERNAL_DXTN_LIB=1
-DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS

When i configure mesa manually here is what gets defined:
Macros: -D_GNU_SOURCE -DPTHREADS -DHAVE_POSIX_MEMALIGN
-DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS
-DGLX_DIRECT_RENDERING -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM
-DUSE_SSE_ASM

The ebuild seems to drop: -D_GNU_SOURCES -DPTHREADS -DUSE_X86_ASM -DUSE_MMX_ASM
-DUSE_3DNOW_ASM -DUSE_SSE_ASM
The ebuild adds: -DUSE_XCB


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