glsl: Autogenerate builtin_functions.cpp as part of the build process.

Python is already necessary for other parts of Mesa, so there's no
reason we can't just generate it.  This patch updates both make and
SCons to do so.

2 files changed, 9 insertions, 40 deletions

diff --git a/src/glsl/builtins/tools/builtin_function.cpp b/src/glsl/builtins/tools/builtin_function.cpp
deleted file mode 100644
index 00b3294915..0000000000
--- a/src/glsl/builtins/tools/builtin_function.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#include <stdio.h>
-#include "glsl_parser_extras.h"
-
-/* A dummy file.  When compiling prototypes, we don't care about builtins.
- * We really don't want to half-compile builtin_functions.cpp and fail, though.
- */
-void
-_mesa_glsl_release_functions(void)
-{
-}
-
-void
-_mesa_glsl_initialize_functions(_mesa_glsl_parse_state *state)
-{
-}
diff --git a/src/glsl/builtins/tools/generate_builtins.py b/src/glsl/builtins/tools/generate_builtins.py
index e2de9dbcdc..8b11338e8c 100755
--- a/src/glsl/builtins/tools/generate_builtins.py
+++ b/src/glsl/builtins/tools/generate_builtins.py
@@ -5,12 +5,20 @@ import re
 from glob import glob
 from os import path
 from subprocess import Popen, PIPE
+from sys import argv
 
 # Local module: generator for texture lookup builtins
 from texture_builtins import generate_texture_functions
 
 builtins_dir = path.join(path.dirname(path.abspath(__file__)), "..")
 
+# Get the path to the standalone GLSL compiler
+if len(argv) != 2:
+   print "Usage:", argv[0], "<path to compiler>"
+   sys.exit(1)
+
+compiler = argv[1]
+
 # Read the files in builtins/ir/*...add them to the supplied dictionary.
 def read_ir_files(fs):
     for filename in glob(path.join(path.join(builtins_dir, 'ir'), '*')):
@@ -47,8 +55,7 @@ def write_function_definitions():
         print stringify(v), ';'
 
 def run_compiler(args):
-    compiler_path = path.join(path.join(builtins_dir, '..'), 'glsl_compiler')
-    command = [compiler_path, '--dump-lir'] + args
+    command = [compiler, '--dump-lir'] + args
     p = Popen(command, 1, stdout=PIPE, shell=False)
     output = p.communicate()[0]