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-rw-r--r--Lib/distutils/sysconfig.py10
-rw-r--r--Lib/distutils/tests/test_unixccompiler.py36
-rw-r--r--Misc/NEWS5
3 files changed, 47 insertions, 4 deletions
diff --git a/Lib/distutils/sysconfig.py b/Lib/distutils/sysconfig.py
index 898aa26..d9c9d65 100644
--- a/Lib/distutils/sysconfig.py
+++ b/Lib/distutils/sysconfig.py
@@ -188,9 +188,15 @@ def customize_compiler(compiler):
get_config_vars('CC', 'CXX', 'OPT', 'CFLAGS',
'CCSHARED', 'LDSHARED', 'SHLIB_SUFFIX', 'AR', 'ARFLAGS')
- newcc = None
if 'CC' in os.environ:
- cc = os.environ['CC']
+ newcc = os.environ['CC']
+ if (sys.platform == 'darwin'
+ and 'LDSHARED' not in os.environ
+ and ldshared.startswith(cc)):
+ # On OS X, if CC is overridden, use that as the default
+ # command for LDSHARED as well
+ ldshared = newcc + ldshared[len(cc):]
+ cc = newcc
if 'CXX' in os.environ:
cxx = os.environ['CXX']
if 'LDSHARED' in os.environ:
diff --git a/Lib/distutils/tests/test_unixccompiler.py b/Lib/distutils/tests/test_unixccompiler.py
index 1bff38e..a5a63fd 100644
--- a/Lib/distutils/tests/test_unixccompiler.py
+++ b/Lib/distutils/tests/test_unixccompiler.py
@@ -1,7 +1,8 @@
"""Tests for distutils.unixccompiler."""
+import os
import sys
import unittest
-from test.support import run_unittest
+from test.support import EnvironmentVarGuard, run_unittest
from distutils import sysconfig
from distutils.unixccompiler import UnixCCompiler
@@ -94,7 +95,6 @@ class UnixCCompilerTestCase(unittest.TestCase):
sysconfig.get_config_var = gcv
self.assertEqual(self.cc.rpath_foo(), '-Wl,--enable-new-dtags,-R/foo')
-
# non-GCC GNULD
sys.platform = 'bar'
def gcv(v):
@@ -115,6 +115,38 @@ class UnixCCompilerTestCase(unittest.TestCase):
sysconfig.get_config_var = gcv
self.assertEqual(self.cc.rpath_foo(), '-R/foo')
+ @unittest.skipUnless(sys.platform == 'darwin', 'test only relevant for OS X')
+ def test_osx_cc_overrides_ldshared(self):
+ # Issue #18080:
+ # ensure that setting CC env variable also changes default linker
+ def gcv(v):
+ if v == 'LDSHARED':
+ return 'gcc-4.2 -bundle -undefined dynamic_lookup '
+ return 'gcc-4.2'
+ sysconfig.get_config_var = gcv
+ with EnvironmentVarGuard() as env:
+ env['CC'] = 'my_cc'
+ del env['LDSHARED']
+ sysconfig.customize_compiler(self.cc)
+ self.assertEqual(self.cc.linker_so[0], 'my_cc')
+
+ @unittest.skipUnless(sys.platform == 'darwin', 'test only relevant for OS X')
+ def test_osx_explict_ldshared(self):
+ # Issue #18080:
+ # ensure that setting CC env variable does not change
+ # explicit LDSHARED setting for linker
+ def gcv(v):
+ if v == 'LDSHARED':
+ return 'gcc-4.2 -bundle -undefined dynamic_lookup '
+ return 'gcc-4.2'
+ sysconfig.get_config_var = gcv
+ with EnvironmentVarGuard() as env:
+ env['CC'] = 'my_cc'
+ env['LDSHARED'] = 'my_ld -bundle -dynamic'
+ sysconfig.customize_compiler(self.cc)
+ self.assertEqual(self.cc.linker_so[0], 'my_ld')
+
+
def test_suite():
return unittest.makeSuite(UnixCCompilerTestCase)
diff --git a/Misc/NEWS b/Misc/NEWS
index 97c8408..be1be6a 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -308,6 +308,11 @@ Library
- Issue #17032: The "global" in the "NameError: global name 'x' is not defined"
error message has been removed. Patch by Ram Rachum.
+- Issue #18080: When building a C extension module on OS X, if the compiler
+ is overriden with the CC environment variable, use the new compiler as
+ the default for linking if LDSHARED is not also overriden. This restores
+ Distutils behavior introduced in 3.2.3 and inadvertently dropped in 3.3.0.
+
Tests
-----