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-rw-r--r--src/engine/SCons/Script/Main.py10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/engine/SCons/Script/Main.py b/src/engine/SCons/Script/Main.py
index f9df813..c810634 100644
--- a/src/engine/SCons/Script/Main.py
+++ b/src/engine/SCons/Script/Main.py
@@ -47,6 +47,7 @@ import os
import sys
import time
import traceback
+import sysconfig
import SCons.CacheDir
import SCons.Debug
@@ -1251,16 +1252,19 @@ def _build_targets(fs, options, targets, target_top):
# various print_* settings, tree_printer list, etc.
BuildTask.options = options
+
+ python_has_threads = sysconfig.get_config_var('WITH_THREAD')
+ # to check if python configured with threads.
global num_jobs
num_jobs = options.num_jobs
jobs = SCons.Job.Jobs(num_jobs, taskmaster)
if num_jobs > 1:
msg = None
- if jobs.num_jobs == 1:
+ if sys.platform == 'win32':
+ msg = fetch_win32_parallel_msg()
+ elif jobs.num_jobs == 1 or not python_has_threads:
msg = "parallel builds are unsupported by this version of Python;\n" + \
"\tignoring -j or num_jobs option.\n"
- elif sys.platform == 'win32':
- msg = fetch_win32_parallel_msg()
if msg:
SCons.Warnings.warn(SCons.Warnings.NoParallelSupportWarning, msg)