glsl: initialise const force glsl extension warning in fake ctx

valgrind complained about an uninitialised value being used in
glsl_parser_extras.cpp, and this was the one it was giving out about.

Just initialise the value in the fakectx.

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/glsl/builtins/tools/generate_builtins.py b/src/glsl/builtins/tools/generate_builtins.py
index 9c1aeb5..0d97140 100755 (executable)
--- a/src/glsl/builtins/tools/generate_builtins.py
+++ b/src/glsl/builtins/tools/generate_builtins.py
@@ -164,6 +164,7 @@ read_builtins(GLenum target, const char *protos, const char **functions, unsigne
    fakeCtx.API = API_OPENGL;
    fakeCtx.Const.GLSLVersion = 140;
    fakeCtx.Extensions.ARB_ES2_compatibility = true;
+   fakeCtx.Const.ForceGLSLExtensionsWarn = false;
    gl_shader *sh = _mesa_new_shader(NULL, 0, target);
    struct _mesa_glsl_parse_state *st =
       new(sh) _mesa_glsl_parse_state(&fakeCtx, target, sh);