From 1e8177ee178b131afa86d874b062a8ae3fae0cca Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jos=C3=A9=20Fonseca?= Date: Tue, 10 Feb 2009 18:11:56 +0000 Subject: scons: Use parallel builds by default. --- scons/gallium.py | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'scons/gallium.py') diff --git a/scons/gallium.py b/scons/gallium.py index 065c53c54b..fc1ed08e47 100644 --- a/scons/gallium.py +++ b/scons/gallium.py @@ -163,6 +163,25 @@ def createInstallMethods(env): env.AddMethod(install_shared_library, 'InstallSharedLibrary') +def num_jobs(): + try: + return int(os.environ['NUMBER_OF_PROCESSORS']) + except (ValueError, KeyError): + pass + + try: + return os.sysconf('SC_NPROCESSORS_ONLN') + except (ValueError, OSError, AttributeError): + pass + + try: + return int(os.popen2("sysctl -n hw.ncpu")[1].read()) + except ValueError: + pass + + return 1 + + def generate(env): """Common environment generation code""" @@ -207,6 +226,10 @@ def generate(env): env.SConsignFile(os.path.join(build_dir, '.sconsign')) env.CacheDir('build/cache') + # Parallel build + if env.GetOption('num_jobs') <= 1: + env.SetOption('num_jobs', num_jobs()) + # C preprocessor options cppdefines = [] if debug: -- cgit v1.2.3