Commit 015e8b63 authored by Jose Fonseca's avatar Jose Fonseca

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's avatarBrian Paul <>
parent 357d1fc8
......@@ -622,6 +622,14 @@ def generate(env):
# Load tools
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.
if env['llvm']:
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