The Mac OS X SCons build failed on 32-bit CPUs starting with commit
2f6d47a7c8 during linking of graw-null.
The build succeeds though on a 64-bit CPU. See FDO bug 29117.
This was the compiler error.
scons: building associated VariantDir targets: build/darwin-x86-debug
Linking build/darwin-x86-debug/gallium/targets/graw-null/libgraw.dylib ...
Undefined symbols:
"_lp_swizzled_cbuf", referenced from:
_lp_swizzled_cbuf$non_lazy_ptr in libllvmpipe.a(lp_rast.os)
_lp_swizzled_cbuf$non_lazy_ptr in libllvmpipe.a(lp_rast_tri.os)
(maybe you meant: _lp_swizzled_cbuf$non_lazy_ptr)
"_lp_dummy_tile", referenced from:
_lp_dummy_tile$non_lazy_ptr in libllvmpipe.a(lp_rast.os)
_lp_dummy_tile$non_lazy_ptr in libllvmpipe.a(lp_rast_tri.os)
_lp_dummy_tile$non_lazy_ptr in libllvmpipe.a(lp_setup.os)
(maybe you meant: _lp_dummy_tile$non_lazy_ptr)
The patch adds -fno-common to all Mac OS X builds to work around this issue.
Now that draw depends on llvm it is very difficult to correctly handle
broken llvm installations. Either the user requests LLVM and it needs to
supply a working installation. Or it doesn't, and it gets no LLVM
accelerate pipe drivers.
This serves several purposes:
- disable caching in situations were is it useless or undesired
- share caches among all trees
- simplify purging the cache (when it's a single location)
- move the cache out of the tree, since that slows downs IDEs considerably
To retain previous behavior just define do
export SCONS_CACHE_DIR=$PWD/build/cache
before invoking scons.
Everybody is using the C99's integer types. Everybody except Microsoft,
which in turns means everybody is including their own definitions of C99
integer types for MSVC, causing duplicate definitions when linking two
projects. This is the case of building Gallium and LLVM with MSVC.
Shipping alternative stdint.h and stdbool.h headers for MSVC allows us
to share a single definition. It also removes clutter from the Gallium
headers.
Some of the demo progams legitimately need the functionality
that's disabled by WIN32_LEAN_AND_MEAN.
Instead the solution should be to define WIN32_LEAN_AND_MEAN just before
including windows.h on a case by case basis.
Strict aliasing tule violations were fixed on master, but
they're still causing problem in this branch, so disable this assumptions.
Do not apply this fix to master (revert when you merge).
