diff options
| author | Brian Paul <brianp@vmware.com> | 2012-01-12 08:41:24 -0700 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2012-01-12 09:18:34 -0700 |
| commit | eab036a6eaebd532f88c49bd26550c6225f96005 (patch) | |
| tree | 65d15be2efd4fd2cbb31f3c35aae425d74a6d4df /src/gallium/auxiliary/util/u_math.h | |
| parent | 8cfaab59e0875bff92179aacfffd690c805906ef (diff) | |
| download | external_mesa3d-eab036a6eaebd532f88c49bd26550c6225f96005.zip external_mesa3d-eab036a6eaebd532f88c49bd26550c6225f96005.tar.gz external_mesa3d-eab036a6eaebd532f88c49bd26550c6225f96005.tar.bz2 | |
mesa/gallium: add FFS_DEFINED to protect ffs() from multiple definitions
We include both imports.h and u_math.h in the state tracker. This
leads to multiple, conflicting definitions of ffs() with MSVC.
Use FFS_DEFINED to skip the ffs() in u_math.h.
Reviewed-by: José Fonseca <jfonseca@vmware.com>
Diffstat (limited to 'src/gallium/auxiliary/util/u_math.h')
| -rw-r--r-- | src/gallium/auxiliary/util/u_math.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index 404bd21..f619666 100644 --- a/src/gallium/auxiliary/util/u_math.h +++ b/src/gallium/auxiliary/util/u_math.h @@ -340,6 +340,9 @@ util_is_inf_or_nan(float x) * Find first bit set in word. Least significant bit is 1. * Return 0 if no bits set. */ +#ifndef FFS_DEFINED +#define FFS_DEFINED 1 + #if defined(_MSC_VER) && _MSC_VER >= 1300 && (_M_IX86 || _M_AMD64 || _M_IA64) unsigned char _BitScanForward(unsigned long* Index, unsigned long Mask); #pragma intrinsic(_BitScanForward) @@ -372,6 +375,8 @@ unsigned ffs( unsigned u ) #define ffs __builtin_ffs #endif +#endif /* FFS_DEFINED */ + /* Destructively loop over all of the bits in a mask as in: * |