python - installing lxml in OSX 10.9 -

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i have problem installing lxml in mavericks machine.

i tried possibilities installing prebuild binaries using

  • normal pip
  • pip static deps

and building

  • current version in normal model
  • current version static deps
  • older version in normal mode
  • older version static deps

and end in error.

clang: error: unknown argument: '-mno-fused-madd' [-wunused-command-line-argument-hard-error-in-future] clang: note: hard error (cannot downgraded warning) in future error: command 'cc' failed exit status 1

here detailed message

copying /users/mangoreader/work/lxml-3.3.4/build/tmp/libxml2/include/libxslt/xsltutils.h -> build/lib.macosx-10.9-intel-2.7/lxml/includes/libxslt running build_ext building 'lxml.etree' 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 -i/users/mangoreader/work/lxml-3.3.4/build/tmp/libxml2/include -i/users/mangoreader/work/lxml-3.3.4/build/tmp/libxml2/include/libxml2 -i/users/mangoreader/work/lxml-3.3.4/build/tmp/libxml2/include/libxslt -i/users/mangoreader/work/lxml-3.3.4/build/tmp/libxml2/include/libexslt -i/users/mangoreader/work/lxml-3.3.4/src/lxml/includes -i/system/library/frameworks/python.framework/versions/2.7/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.macosx-10.9-intel-2.7/src/lxml/lxml.etree.o -w -flat_namespace clang: error: unknown argument: '-mno-fused-madd' [-wunused-command-line-argument-hard-error-in-future] clang: note: hard error (cannot downgraded warning) in future error: command 'cc' failed exit status 1

also when tried installing cython , getting same error

clang: error: unknown argument: '-mno-fused-madd' [-wunused-command-line-argument-hard-error-in-future]  clang: note: hard error (cannot downgraded warning) in future  error: command 'cc' failed exit status 1

detailed log here

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 -i/system/library/frameworks/python.framework/versions/2.7/include/python2.7 -c /private/var/folders/1z/7lv1qq457qxbhkgpt1fk9sdc0000gn/t/pip_build_mangoreader/cython/cython/plex/scanners.c -o build/temp.macosx-10.9-intel-2.7/private/var/folders/1z/7lv1qq457qxbhkgpt1fk9sdc0000gn/t/pip_build_mangoreader/cython/cython/plex/scanners.o  clang: error: unknown argument: '-mno-fused-madd' [-wunused-command-line-argument-hard-error-in-future]  clang: note: hard error (cannot downgraded warning) in future  error: command 'cc' failed exit status 1  ---------------------------------------- cleaning up... command /usr/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/1z/7lv1qq457qxbhkgpt1fk9sdc0000gn/t/pip_build_mangoreader/cython/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/1z/7lv1qq457qxbhkgpt1fk9sdc0000gn/t/pip-0akrmb-record/install-record.txt --single-version-externally-managed --compile failed error code 1 in /private/var/folders/1z/7lv1qq457qxbhkgpt1fk9sdc0000gn/t/pip_build_mangoreader/cython storing debug log failure in /users/mangoreader/library/logs/pip.log

i totally struck here. seems version conflict gcc or libxml. could't figure out what. appreciated.

solved

as per post clang error: unknown argument: '-mno-fused-madd' (python package installation failure), can fixed setting following env variables 

export cflags=-qunused-arguments export cppflags=-qunused-arguments

i sure that sorted out, in case else needs it, install xcode , command line tools , run

pip install lxml

it work, may take little time.


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