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util: Include string.h in bitscan.h.

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Fix build error with clang.

  Compiling src/compiler/glsl/link_varyings.cpp ...
In file included from src/compiler/glsl/link_varyings.cpp:33:
In file included from src/compiler/glsl/glsl_symbol_table.h:34:
In file included from src/compiler/glsl/ir.h:33:
In file included from src/compiler/glsl_types.h:29:
/usr/include/string.h:518:12: error: exception specification in declaration does not match previous declaration
extern int ffs (int __i) __THROW __attribute__ ((__const__));
           ^
src/util/bitscan.h:51:13: note: expanded from macro 'ffs'
            ^
src/util/bitscan.h:96:18: note: previous declaration is here
   const int i = ffs(*mask) - 1;
                 ^
src/util/bitscan.h:51:13: note: expanded from macro 'ffs'
            ^

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97952
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
This commit is contained in:
Vinson Lee 2016-10-19 18:03:12 -07:00
parent 42273edf79
commit 889ee4da05
1 changed files with 1 additions and 0 deletions
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src/util/bitscan.h
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@ -31,6 +31,7 @@
#include <assert.h>
#include <stdint.h>
#include <string.h>
#if defined(_MSC_VER)
#include <intrin.h>