X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=scons%2Fgallium.py;h=587294af71dcbd0e7bc7f10d498f74d7880e28db;hb=a9f71b3bba86771be56ff1def716beb370decd22;hp=38782ac7266f5535d3f006de9e8a2757a945fbb6;hpb=890679d4322e7ba4f12f32532a3fdd277edff886;p=mesa.git

diff --git a/scons/gallium.py b/scons/gallium.py
index 38782ac7266..587294af71d 100644
--- a/scons/gallium.py
+++ b/scons/gallium.py
@@ -343,10 +343,18 @@ def generate(env):
             ccflags += [
                 '-m32',
                 #'-march=pentium4',
-                '-mmmx', '-msse', '-msse2', # enable SIMD intrinsics
-                '-mstackrealign', # ensure stack is aligned -- do not enabled -msse without it!
                 #'-mfpmath=sse',
             ]
+            if platform != 'windows':
+                # XXX: -mstackrealign causes stack corruption on MinGW. Ditto
+                # for -mincoming-stack-boundary=2.  Still enable it on other
+                # platforms for now, but we can't rely on it for cross platform
+                # code. We have to use __attribute__((force_align_arg_pointer))
+                # instead.
+                ccflags += [
+                    '-mmmx', '-msse', '-msse2', # enable SIMD intrinsics
+                    '-mstackrealign', # ensure stack is aligned
+                ]
         if env['machine'] == 'x86_64':
             ccflags += ['-m64']
         # See also: