1 files changed, 65 insertions, 0 deletions
diff --git a/common.py b/common.py
new file mode 100644
index 00000000000..cc2582f1a4e
--- /dev/null
+++ b/common.py
@@ -0,0 +1,65 @@
+#######################################################################
+# Common SCons code
+
+import os
+import os.path
+import sys
+import platform as _platform
+
+
+#######################################################################
+# Defaults
+
+_platform_map = {
+	'linux2': 'linux',
+	'win32': 'winddk',
+}
+
+default_platform = sys.platform
+default_platform = _platform_map.get(default_platform, default_platform)
+
+_machine_map = {
+	'x86': 'x86',
+	'i386': 'x86',
+	'i486': 'x86',
+	'i586': 'x86',
+	'i686': 'x86',
+	'ppc' : 'ppc',
+	'x86_64': 'x86_64',
+}
+if 'PROCESSOR_ARCHITECTURE' in os.environ:
+	default_machine = os.environ['PROCESSOR_ARCHITECTURE']
+else:
+	default_machine = _platform.machine()
+default_machine = _machine_map.get(default_machine, 'generic')
+
+if default_platform in ('linux', 'freebsd', 'darwin'):
+	default_dri = 'yes'
+elif default_platform in ('winddk', 'windows', 'wince'):
+	default_dri = 'no'
+else:
+	default_dri = 'no'
+
+
+#######################################################################
+# Common options
+
+def AddOptions(opts):
+	try:
+		from SCons.Options.BoolOption import BoolOption
+	except ImportError:
+		from SCons.Variables.BoolVariable import BoolVariable as BoolOption
+	try:
+		from SCons.Options.EnumOption import EnumOption
+	except ImportError:
+		from SCons.Variables.EnumVariable import EnumVariable as EnumOption
+	opts.Add(BoolOption('debug', 'debug build', 'no'))
+	opts.Add(BoolOption('profile', 'profile build', 'no'))
+	#opts.Add(BoolOption('quiet', 'quiet command lines', 'no'))
+	opts.Add(EnumOption('machine', 'use machine-specific assembly code', default_machine,
+											 allowed_values=('generic', 'ppc', 'x86', 'x86_64')))
+	opts.Add(EnumOption('platform', 'target platform', default_platform,
+											 allowed_values=('linux', 'cell', 'windows', 'winddk', 'wince')))
+	opts.Add(BoolOption('llvm', 'use LLVM', 'no'))
+	opts.Add(BoolOption('dri', 'build DRI drivers', default_dri))
+