From 43f8a82a76599c10fa33ef35b6500924768de90c Mon Sep 17 00:00:00 2001
From: Zack Rusin <zackr@vmware.com>
Date: Tue, 9 Feb 2010 00:00:35 -0500
Subject: [PATCH] scons: don't assume llvm is always present

---
 SConstruct | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/SConstruct b/SConstruct
index 76ab9025e23..fa67d14b795 100644
--- a/SConstruct
+++ b/SConstruct
@@ -170,8 +170,11 @@ if dri:
 if drawllvm:
 	# See also http://www.scons.org/wiki/UsingPkgConfig
         # currently  --ldflags --libsdisabled since the driver will force the correct linkage
-	env.ParseConfig('llvm-config --cflags backend bitreader engine instrumentation interpreter ipo')
-	env.Append(CPPDEFINES = ['DRAW_LLVM'])
+        env.Tool('llvm')
+        if not env.has_key('LLVM_VERSION'):
+           drawllvm = False
+	else:
+           env.Append(CPPDEFINES = ['DRAW_LLVM'])
 
 # libGL
 if platform in ('linux', 'freebsd', 'darwin'):
-- 
2.30.2