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/tests/test_build_ext.py b/Lib/distutils/tests/test_build_ext.py
index dcba75f..0aa99ba 100644
--- a/Lib/distutils/tests/test_build_ext.py
+++ b/Lib/distutils/tests/test_build_ext.py
@@ -2,6 +2,7 @@
import os
import shutil
from io import StringIO
+import textwrap
from distutils.core import Distribution
from distutils.command.build_ext import build_ext
@@ -419,6 +420,67 @@
wanted = os.path.join(curdir, 'twisted', 'runner', 'portmap' + ext)
self.assertEqual(wanted, path)
+
+ @unittest.skipUnless(sys.platform == 'darwin', 'test only relevant for MacOSX')
+ def test_deployment_target(self):
+ self._try_compile_deployment_target()
+
+ orig_environ = os.environ
+ os.environ = orig_environ.copy()
+ self.addCleanup(setattr, os, 'environ', orig_environ)
+
+ os.environ['MACOSX_DEPLOYMENT_TARGET']='10.1'
+ self._try_compile_deployment_target()
+
+
+ def _try_compile_deployment_target(self):
+ deptarget_c = os.path.join(self.tmp_dir, 'deptargetmodule.c')
+
+ with open(deptarget_c, 'w') as fp:
+ fp.write(textwrap.dedent('''\
+ #include <AvailabilityMacros.h>
+
+ int dummy;
+
+ #if TARGET != MAC_OS_X_VERSION_MIN_REQUIRED
+ #error "Unexpected target"
+ #endif
+
+ '''))
+
+ target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
+ target = tuple(map(int, target.split('.')))
+ target = '%02d%01d0' % target
+
+ deptarget_ext = Extension(
+ 'deptarget',
+ [deptarget_c],
+ extra_compile_args=['-DTARGET=%s'%(target,)],
+ )
+ dist = Distribution({
+ 'name': 'deptarget',
+ 'ext_modules': [deptarget_ext]
+ })
+ dist.package_dir = self.tmp_dir
+ cmd = build_ext(dist)
+ cmd.build_lib = self.tmp_dir
+ cmd.build_temp = self.tmp_dir
+
+ try:
+ old_stdout = sys.stdout
+ if not support.verbose:
+ # silence compiler output
+ sys.stdout = StringIO()
+ try:
+ cmd.ensure_finalized()
+ cmd.run()
+ finally:
+ sys.stdout = old_stdout
+
+ except CompileError:
+ self.fail("Wrong deployment target during compilation")
+
+
def test_suite():
src = _get_source_filename()
if not os.path.exists(src):