Mesa (master): llvmpipe: Only use -mssse3 on gcc 4.3+

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: 0a36a064a12de5caa0a6c1b245c9cc25bb00e5e0
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0a36a064a12de5caa0a6c1b245c9cc25bb00e5e0

Author: José Fonseca <jfonseca at vmware.com>
Date:   Thu Jul 15 18:22:39 2010 +0100

llvmpipe: Only use -mssse3 on gcc 4.3+

---

 src/gallium/drivers/llvmpipe/SConscript |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/src/gallium/drivers/llvmpipe/SConscript b/src/gallium/drivers/llvmpipe/SConscript
index 548423c..fd6ba15 100644
--- a/src/gallium/drivers/llvmpipe/SConscript
+++ b/src/gallium/drivers/llvmpipe/SConscript
@@ -1,3 +1,5 @@
+import distutils.version
+
 Import('*')
 
 if not env['llvm']:
@@ -26,7 +28,9 @@ env.Depends('lp_tile_soa.c', [
 
 # Only enable SSSE3 for lp_tile_soa_sse3.c
 ssse3_env = env.Clone()
-if env['gcc'] and env['machine'] in ('x86', 'x86_64'):
+if env['gcc'] \
+   and distutils.version.LooseVersion(env['CCVERSION']) >= distutils.version.LooseVersion('4.3') \
+   and env['machine'] in ('x86', 'x86_64') :
     ssse3_env.Append(CCFLAGS = ['-mssse3'])
 lp_tile_soa_os = ssse3_env.SharedObject('lp_tile_soa.c')