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-rw-r--r--build_scripts/main.py6
-rw-r--r--build_scripts/utils.py7
2 files changed, 12 insertions, 1 deletions
diff --git a/build_scripts/main.py b/build_scripts/main.py
index b64d6f1a9..03e4259d4 100644
--- a/build_scripts/main.py
+++ b/build_scripts/main.py
@@ -133,6 +133,7 @@ from setuptools.command.build_py import build_py as _build_py
from .qtinfo import QtInfo
from .utils import rmtree, detect_clang, copyfile, copydir, run_process_output, run_process
from .utils import update_env_path, init_msvc_env, filter_match, macos_fix_rpaths_for_library
+from .utils import cpu_count
from .platforms.unix import prepare_packages_posix
from .platforms.windows_desktop import prepare_packages_win32
from .wheel_override import wheel_module_exists, get_bdist_wheel_override
@@ -228,7 +229,10 @@ if OPTION_JOBS:
if not OPTION_JOBS.startswith('-j'):
OPTION_JOBS = '-j' + OPTION_JOBS
else:
- OPTION_JOBS = ''
+ if sys.platform == 'win32' and OPTION_NO_JOM:
+ OPTION_JOBS = ''
+ else:
+ OPTION_JOBS = '-j' + str(cpu_count())
def is_debug_python():
return getattr(sys, "gettotalrefcount", None) is not None
diff --git a/build_scripts/utils.py b/build_scripts/utils.py
index 7160630d1..1b941aea9 100644
--- a/build_scripts/utils.py
+++ b/build_scripts/utils.py
@@ -1124,3 +1124,10 @@ def acceptCITestConfiguration(hostOS, hostOSVer, targetArch, compiler):
print("Disabled " + compiler + " to " + targetArch + " from Coin configuration")
return False
return True
+
+def cpu_count():
+ try:
+ import multiprocessing
+ return multiprocessing.cpu_count()
+ except (ImportError, NotImplementedError, AttributeError):
+ return 1