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

Question

尝试psycopg2通过Pip在Mavericks 10.9上安装时出现以下错误:

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

不确定如何继续并在此处和其他地方搜索此特定错误.任何帮助深表感谢!

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

Answer 1

您可以通过在编译之前设置以下环境变量来告诉clang不要将其作为错误引发:

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

然后pip install psycopg2应该工作.

尝试时我也一样pip install lxml.

编辑:如果您以超级用户身份安装(如果您尝试附加/Library/Python/2.7/site-packages,可能就是这种情况,可能是附加到OS X的原生Apple工厂安装的Python发行版,而不是您随后安装的其他Python发行版) ),那么你需要做的,正如@Thijs Kuipers在下面的评论中所描述的那样:

sudo -E pip install psycopg2

或等效的,无论您用其他任何包装名称代替psycopg2.

更新[2014-05-16]:Apple已经使用更新的系统Pythons(2.7,2.6和2.5)OS X 10.9.3解决了这个问题,因此在使用最新的Mavericks时不再需要解决方法Xcode 5.1+.但是,截至目前,OS X 10.8.x如果您在Xcode 5.1+那里使用(Mountain Lion,目前为10.8.5),仍需要解决方法.

Answer 2

更新:10.9.3解决了系统CPython的问题.

这是由Apple今天推出的最新版本的Xng 5.1更新引起的,并且正在影响很多人,所以希望很快就会出现修复.

更新:不要指望这会得到如此多的关注,但是更多细节:clang 3.4 Apple默认为未知标志上的错误,但CPython使用最初编译的同一组标志构建模块.系统CPython是使用clang未知的几个标志编译的,因此导致了这个问题.以下是目前的小牛队(10.9.2)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

要解决此问题,您有以下几种选择:

• 添加ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future到您的编译标志.
• 通过 CFLAGS=""
• 从sysconfigdata.py中删除不支持的标志(如另一个答案中所述).
• 使用自制软件编译一个新的python .
• 等待下一次OS X更新,据传包含重新编译的Python/Ruby以消除系统运行时的这个问题.

Answer 3

xCode 5.1

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

Answer 4

这是一个解决方法,涉及从python安装中删除标志.

在/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/_sysconfigdata.py几个设置-mfused-madd/ -mno-fused-maddflag的地方.

编辑此文件并删除编译应该起作用的所有对该标志的引用:

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

您需要删除相应的_sysconfigdata.pyc和_sysconfigdata.pyo文件,以及-至少我的系统上这些文件没有自动获得重建:

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

请注意,必须使用root访问权限才能进行这些更改.