From 015e8b6384bbdba8421c5dafd4783dba4d3a9182 Mon Sep 17 00:00:00 2001 From: Jose Fonseca Date: Thu, 19 Mar 2015 11:53:36 +0000 Subject: [PATCH] scons: Define YY_USE_CONST on MSVC. This prevents the MSVC from warning C4090: 'function' : different 'const' qualifiers when compiling flex generated lexers. Reviewed-by: Brian Paul --- scons/gallium.py | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/scons/gallium.py b/scons/gallium.py index 2b115267a8e..9924f1e7dce 100755 --- a/scons/gallium.py +++ b/scons/gallium.py @@ -622,6 +622,14 @@ def generate(env): # Load tools env.Tool('lex') + if env['msvc']: + env.Append(LEXFLAGS = [ + # Force flex to use const keyword in prototypes, as relies on + # __cplusplus or __STDC__ macro to determine whether it's safe to + # use const keyword, but MSVC never defines __STDC__ unless we + # disable all MSVC extensions. + '-DYY_USE_CONST=', + ]) env.Tool('yacc') if env['llvm']: env.Tool('llvm') -- 2.30.2