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-rwxr-xr-xscons/gallium.py18
1 files changed, 18 insertions, 0 deletions
diff --git a/scons/gallium.py b/scons/gallium.py
index ea09b5d0d69..f9a2e592db8 100755
--- a/scons/gallium.py
+++ b/scons/gallium.py
@@ -35,6 +35,7 @@ import os
import os.path
import re
import subprocess
+import platform as _platform
import SCons.Action
import SCons.Builder
@@ -191,6 +192,23 @@ def generate(env):
gcc = env['gcc']
msvc = env['msvc']
+ # Determine whether we are cross compiling; in particular, whether we need
+ # to compile code generators with a different compiler as the target code.
+ host_platform = _platform.system().lower()
+ host_machine = os.environ.get('PROCESSOR_ARCHITECTURE', _platform.machine())
+ host_machine = {
+ 'x86': 'x86',
+ 'i386': 'x86',
+ 'i486': 'x86',
+ 'i586': 'x86',
+ 'i686': 'x86',
+ 'ppc' : 'ppc',
+ 'x86_64': 'x86_64',
+ }.get(host_machine, 'generic')
+ env['crosscompile'] = platform != host_platform
+ if machine == 'x86_64' and host_machine != 'x86_64':
+ env['crosscompile'] = True
+
# Backwards compatability with the debug= profile= options
if env['build'] == 'debug':
if not env['debug']: