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distutils fails to build C extensions with XCode 5.1 and OS X 10.9 (Mavericks) #65443

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kfrazier mannequin opened this issue Apr 15, 2014 · 2 comments
Closed

distutils fails to build C extensions with XCode 5.1 and OS X 10.9 (Mavericks) #65443

kfrazier mannequin opened this issue Apr 15, 2014 · 2 comments
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stdlib Python modules in the Lib dir

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@kfrazier
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kfrazier mannequin commented Apr 15, 2014

BPO 21244
Nosy @jaraco, @ned-deily, @merwok, @dstufft
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  • toysetup.py: Simplified setup.py file to demonstrate the issue
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    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
closed_at = <Date 2014-04-16.01:37:06.888>
created_at = <Date 2014-04-15.19:16:26.860>
labels = ['library']
title = 'distutils fails to build C extensions with XCode 5.1 and OS X 10.9 (Mavericks)'
updated_at = <Date 2014-04-16.01:37:06.868>
user = 'https://bugs.python.org/kfrazier'

    bugs.python.org fields:

    activity = <Date 2014-04-16.01:37:06.868>
actor = 'ned.deily'
assignee = 'none'
closed = True
closed_date = <Date 2014-04-16.01:37:06.888>
closer = 'ned.deily'
components = ['Distutils']
creation = <Date 2014-04-15.19:16:26.860>
creator = 'kfrazier'
dependencies = []
files = ['34889']
hgrepos = []
issue_num = 21244
keywords = []
message_count = 2.0
messages = ['216363', '216418']
nosy_count = 5.0
nosy_names = ['jaraco', 'ned.deily', 'eric.araujo', 'kfrazier', 'dstufft']
pr_nums = []
priority = 'normal'
resolution = 'third party'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue21244'
versions = ['Python 2.7']
    @kfrazier
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    kfrazier mannequin commented Apr 15, 2014

    Using the stock Python shipped by Apple with OS X 10.9 Mavericks and XCode 5.1, Mercurial (and other Python extensions) encounter an error like:

    cc -fno-strict-aliasing -fno-common -dynamic -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 -pipe -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c mercurial/base85.c -o /private/var/folders/qv/tv81r5_9119bs3jwj3g2rp540000gn/T/hgtests._a6HZj/build/temp.macosx-10.9-intel-2.7/mercurial/base85.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
    make: *** [tests] Error 1

    This can be worked around with:

    export CFLAGS=-Qunused-arguments

    On my machine, Python was build with clang-500.0.68 and the XCode 5.1 updates it to clang-503.0.40. I will include a simple setup.py that can be run against Mercurial's head to demonstrate the issue.

    @kfrazier kfrazier mannequin added build The build process and cross-build stdlib Python modules in the Lib dir labels Apr 15, 2014
    @ned-deily
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    This is a problem specifically with the Apple-supplied system Pythons in OS X 10.9. It's due to the obsolete configuration parameters used in their build of Python and due to changes in Xcode 5.1. Expect Apple to fix it in an upcoming maintenance release of OS X 10.9.x.

    @ned-deily ned-deily removed the build The build process and cross-build label Apr 16, 2014
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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