clang错误:未知参数:'-mno-fused-madd'(Python包安装失败)

275 投票
15 回答
82295 浏览
提问于 2025-04-17 21:43

我在Mavericks 10.9上尝试通过pip安装psycopg2时遇到了以下错误:

clang: error: unknown argument: '-mno-fused-madd' [-Wunused-command-line-argument-hard-error-in-future]

我不知道接下来该怎么做,已经在这里和其他地方搜索过这个特定的错误。任何帮助都非常感谢!

以下是pip的完整输出:

$ pip install psycopg2
Downloading/unpacking psycopg2
  Downloading psycopg2-2.5.2.tar.gz (685kB): 685kB downloaded
  Running setup.py (path:/private/var/folders/0z/ljjwsjmn4v9_zwm81vhxj69m0000gn/T/pip_build_tino/psycopg2/setup.py) egg_info for package psycopg2

Installing collected packages: psycopg2
  Running setup.py install for psycopg2
    building 'psycopg2._psycopg' extension
    cc -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -mno-fused-madd -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch x86_64 -arch i386 -pipe -DPSYCOPG_DEFAULT_PYDATETIME=1 -DPSYCOPG_VERSION="2.5.2 (dt dec pq3 ext)" -DPG_VERSION_HEX=0x090303 -DPSYCOPG_EXTENSIONS=1 -DPSYCOPG_NEW_BOOLEAN=1 -DHAVE_PQFREEMEM=1 -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -I. -I/usr/local/Cellar/postgresql/9.3.3/include -I/usr/local/Cellar/postgresql/9.3.3/include/server -c psycopg/psycopgmodule.c -o build/temp.macosx-10.9-intel-2.7/psycopg/psycopgmodule.o
    clang: error: unknown argument: '-mno-fused-madd' [-Wunused-command-line-argument-hard-error-in-future]
    clang: note: this will be a hard error (cannot be downgraded to a warning) in the future
    error: command 'cc' failed with exit status 1
    Complete output from command /usr/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/0z/ljjwsjmn4v9_zwm81vhxj69m0000gn/T/pip_build_tino/psycopg2/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/0z/ljjwsjmn4v9_zwm81vhxj69m0000gn/T/pip-bnWiwB-record/install-record.txt --single-version-externally-managed --compile:
    running install

running build

running build_py

creating build

creating build/lib.macosx-10.9-intel-2.7

creating build/lib.macosx-10.9-intel-2.7/psycopg2

copying lib/__init__.py -> build/lib.macosx-10.9-intel-2.7/psycopg2

copying lib/_json.py -> build/lib.macosx-10.9-intel-2.7/psycopg2

copying lib/_range.py -> build/lib.macosx-10.9-intel-2.7/psycopg2

copying lib/errorcodes.py -> build/lib.macosx-10.9-intel-2.7/psycopg2

copying lib/extensions.py -> build/lib.macosx-10.9-intel-2.7/psycopg2

copying lib/extras.py -> build/lib.macosx-10.9-intel-2.7/psycopg2

copying lib/pool.py -> build/lib.macosx-10.9-intel-2.7/psycopg2

copying lib/psycopg1.py -> build/lib.macosx-10.9-intel-2.7/psycopg2

copying lib/tz.py -> build/lib.macosx-10.9-intel-2.7/psycopg2

creating build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/__init__.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/dbapi20.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/dbapi20_tpc.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_async.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_bug_gc.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_bugX000.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_cancel.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_connection.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_copy.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_cursor.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_dates.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_extras_dictcursor.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_green.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_lobject.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_module.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_notify.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_psycopg2_dbapi20.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_quote.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_transaction.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_types_basic.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_types_extras.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/test_with.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/testconfig.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

copying tests/testutils.py -> build/lib.macosx-10.9-intel-2.7/psycopg2/tests

running build_ext

building 'psycopg2._psycopg' extension

creating build/temp.macosx-10.9-intel-2.7

creating build/temp.macosx-10.9-intel-2.7/psycopg

cc -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -mno-fused-madd -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch x86_64 -arch i386 -pipe -DPSYCOPG_DEFAULT_PYDATETIME=1 -DPSYCOPG_VERSION="2.5.2 (dt dec pq3 ext)" -DPG_VERSION_HEX=0x090303 -DPSYCOPG_EXTENSIONS=1 -DPSYCOPG_NEW_BOOLEAN=1 -DHAVE_PQFREEMEM=1 -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -I. -I/usr/local/Cellar/postgresql/9.3.3/include -I/usr/local/Cellar/postgresql/9.3.3/include/server -c psycopg/psycopgmodule.c -o build/temp.macosx-10.9-intel-2.7/psycopg/psycopgmodule.o

clang: error: unknown argument: '-mno-fused-madd' [-Wunused-command-line-argument-hard-error-in-future]

clang: note: this will be a hard error (cannot be downgraded to a warning) in the future

error: command 'cc' failed with exit status 1

----------------------------------------
Cleaning up...
Command /usr/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/0z/ljjwsjmn4v9_zwm81vhxj69m0000gn/T/pip_build_tino/psycopg2/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/0z/ljjwsjmn4v9_zwm81vhxj69m0000gn/T/pip-bnWiwB-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /private/var/folders/0z/ljjwsjmn4v9_zwm81vhxj69m0000gn/T/pip_build_tino/psycopg2

15 个回答

4

我也修改了系统自带的Python对它原始编译选项的理解(就像@user3405479做的那样)。我没有用编辑器,而是用命令行工具直接在文件上进行修改(这样文件的inode会改变)。我还重新编译了新的pyo和pyc文件,而不是把它们留空。

接下来这些命令需要以管理员身份运行,比如在sudo -i下。

pushd /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7

sed 's/-mno-fused-madd//g' _sysconfigdata.py \ | diff -p _sysconfigdata.py - | patch -b

python -m py_compile _sysconfigdata.py

python -OO -m py_compile _sysconfigdata.py

popd

15

这里有一个解决方法,就是从Python的安装中去掉一个标记。

/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/_sysconfigdata.py 这个文件里,有几个地方设置了 -mfused-madd-mno-fused-madd 这个标记。

你需要编辑这个文件,把所有提到这个标记的地方都删掉,这样你的编译就应该能正常工作了:

sudo sed -i '.old' 's/ -m\(no-\)\{0,1\}fused-madd //g' /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/_sysconfigdata.py

你还需要删除对应的 _sysconfigdata.pyc_sysconfigdata.pyo 文件 - 至少在我的系统上,这些文件不会自动重建:

cd /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
sudo rm _sysconfigdata.pyo _sysconfigdata.pyc

注意,进行这些更改时需要使用管理员权限。

63

xCode 5.1

ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future pip install psycopg2
76

更新:10.9.3版本解决了系统CPython的问题。

这个问题是由于今天苹果发布的Xcode 5.1更新了clang,影响了很多用户,希望很快能有解决办法。

更新:没想到这个问题引起了这么多关注,下面是更多细节:苹果提供的clang 3.4默认会对不认识的标志报错,而CPython在构建模块时使用的是最初编译时的标志。系统自带的CPython是用一些clang不认识的标志编译的,这就导致了这个问题。以下是当前Mavericks(10.9.2)版本的CPython编译标志:

-I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -mno-fused-madd -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE

要解决这个问题,你有几个选择:

  • 在你的编译标志中添加 ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future
  • 传递 CFLAGS=""
  • 从sysconfigdata.py中去掉不支持的标志(在另一个回答中有提到)。
  • 使用homebrew重新编译一个新的python。
  • 等下一个OS X更新,听说会重新编译Python/Ruby,以解决系统运行时的问题。
441

你可以通过在编译之前设置以下环境变量,告诉clang不要把这个当作错误:

export CFLAGS=-Qunused-arguments
export CPPFLAGS=-Qunused-arguments

然后 pip install psycopg2 应该就能正常工作了。

我在尝试 pip install lxml 时也遇到了同样的问题。

补充一下:如果你是以超级用户身份安装(这通常是因为你想要把东西安装到 /Library/Python/2.7/site-packages,这是苹果自带的Python版本,而不是你自己后续安装的其他Python版本),那么你需要按照@Thijs Kuipers在下面评论中提到的做法:

sudo -E pip install psycopg2

或者用你要替换的其他包名来做同样的事情,替换 psycopg2

更新 [2014-05-16]:苹果在 OS X 10.9.3 中修复了这个问题,更新了系统自带的Python(2.7、2.6和2.5),所以在使用最新的Mavericks和 Xcode 5.1+ 时不再需要这个解决方法。不过,目前在使用 Xcode 5.1+OS X 10.8.x(山狮,目前是10.8.5)时,仍然需要这个解决方法。

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