Issue #9516: avoid errors in sysconfig when MACOSX_DEPLOYMENT_TARGET is set in shell.
Without this patch python will fail to start properly when the environment
variable MACOSX_DEPLOYMENT_TARGET is set on MacOSX and has a value that is
not compatible with the value during Python's build. This is caused by code
in sysconfig that was only meant to be used in disutils.
diff --git a/Lib/distutils/sysconfig.py b/Lib/distutils/sysconfig.py
index 897b7d6..06bbc01 100644
--- a/Lib/distutils/sysconfig.py
+++ b/Lib/distutils/sysconfig.py
@@ -428,7 +428,7 @@
cur_target = os.getenv('MACOSX_DEPLOYMENT_TARGET', '')
if cur_target == '':
cur_target = cfg_target
- os.putenv('MACOSX_DEPLOYMENT_TARGET', cfg_target)
+ os.environ['MACOSX_DEPLOYMENT_TARGET'] = cfg_target
elif [int(x) for x in cfg_target.split('.')] > [int(x) for x in cur_target.split('.')]:
my_msg = ('$MACOSX_DEPLOYMENT_TARGET mismatch: now "%s" but "%s" during configure'
% (cur_target, cfg_target))