问题
I'm seeing a very annoying bug that I don't really know how to deal with. It seems to be pretty common, and I've tried nearly every solution that I could find to no avail.
I'm trying to install libraries using pip. This problem was encountered with gevent, with psycopg2, and with greenlet. The issue seems to be that my computer can't find a particular C compiler that should come up with XCode 4: gcc-4.2. Here's an example (though attempts were made in a virtualenv as well).
Last login: Sun Jul 29 23:35:54 on ttys000
*******s-MacBook-Pro:~ ******$ pip install gevent
Downloading/unpacking gevent
Downloading gevent-0.13.7.tar.gz (288Kb): 288Kb downloaded
Running setup.py egg_info for package gevent
Downloading/unpacking greenlet (from gevent)
Downloading greenlet-0.4.0.zip (72Kb): 72Kb downloaded
Running setup.py egg_info for package greenlet
Installing collected packages: gevent, greenlet
Running setup.py install for gevent
building 'gevent.core' extension
gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch i386 -arch x86_64 -g -O2 -DNDEBUG -g -O3 -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c gevent/core.c -o build/temp.macosx-10.6-intel-2.7/gevent/core.o
In file included from /Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/unicodeobject.h:4,
from /Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/Python.h:85,
from gevent/core.c:4:
/Developer/SDKs/MacOSX10.6.sdk/usr/include/stdarg.h:4:25: error: stdarg.h: No such file or directory
In file included from gevent/core.c:225:
gevent/libevent.h:9:19: error: event.h: No such file or directory
gevent/libevent.h:38:20: error: evhttp.h: No such file or directory
gevent/libevent.h:39:19: error: evdns.h: No such file or directory
gevent/core.c:361: error: field ‘ev’ has incomplete type
gevent/core.c:741: warning: parameter names (without types) in function declaration
....more like this but i'll skip it for now....
copying gevent/wsgi.py -> build/lib.macosx-10.6-intel-2.7/gevent
running build_ext
building 'gevent.core' extension
creating build/temp.macosx-10.6-intel-2.7
creating build/temp.macosx-10.6-intel-2.7/gevent
gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch i386 -arch x86_64 -g -O2 -DNDEBUG -g -O3 -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c gevent/core.c -o build/temp.macosx-10.6-intel-2.7/gevent/core.o
In file included from /Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/unicodeobject.h:4,
from /Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/Python.h:85,
from gevent/core.c:4:
/Developer/SDKs/MacOSX10.6.sdk/usr/include/stdarg.h:4:25: error: stdarg.h: No such file or directory
In file included from gevent/core.c:225:
gevent/libevent.h:9:19: error: event.h: No such file or directory
gevent/libevent.h:38:20: error: evhttp.h: No such file or directory
gevent/libevent.h:39:19: error: evdns.h: No such file or directory
....more like this as well....
gevent/core.c:15559: warning: assignment makes pointer from integer without a cast
gevent/core.c: At top level:
gevent/core.c:21272: error: expected ‘)’ before ‘val’
lipo: can't figure out the architecture type of: /var/folders/xc/f2mg5kn96kqdr3tj19pgyhs00000gn/T//cckLxkJ2.out
error: command 'gcc-4.2' failed with exit status 1
Command /Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python -c "import setuptools;__file__='/Users/******/build/gevent/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /var/folders/xc/f2mg5kn96kqdr3tj19pgyhs00000gn/T/pip-yA5oWR-record/install-record.txt failed with error code 1 in /Users/******/build/gevent
Storing complete log in /Users/******/.pip/pip.log
***********s-MacBook-Pro:~ ******$
Things you might ask:
1) Did you try using a virtualenv?
Yes. And I attempted to symlink a preexisting gcc (which is present in the /usr/bin/ directory) like so:
ln -s /usr/bin/gcc gcc-4.2
ln -s /usr/bin/gcc-4.2 gcc-4.2
ln -s /usr/bin/gcc gcc
None of which worked.
2) Did you try reinstalling XCode?
Yes.
3) Did you install the XCode Command Line Tools?
Yes.
4) Are you sure you have gcc?
**********s-MacBook-Pro:~ sanjay$ gcc
i686-apple-darwin11-llvm-gcc-4.2: no input files
5) Python installation?
************s-MacBook-Pro:~ ******$ python
Python 2.7.3 (v2.7.3:70274d53c1dd, Apr 9 2012, 20:52:43)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
Any ideas on what might be wrong and how to fix it?
I also tried installing this: https://github.com/kennethreitz/osx-gcc-installer . I have no idea what else to try. I'm a bit of a new kid on the block when it comes to this unix-y coding / installation things, so if there is something I'm doing very badly please point it out.
Thanks!
回答1:
Same problem with pycrypto install failing to compile in a virtualenv. Found the solution in this thread by poster jiaaro: https://gist.github.com/3179227#gistcomment-379913
You need to install Xcode 4.4 (from the app store) and then, within xcode open Xcode > Preferences (or press Cmd + ,) then open the downloads tab and install the Command Line Tools.
On Mac OSx Mountain Lion 10.8 I had xCode 4.3 installed WITH the command line tools. I did the update to xCode 4.4 and it still didn't work. Xcode does not automatically download the new command line tools apparently even if you had them installed. As the post from jiaaro states, you have to explicitly download the command line tools again.
Current version of gcc is below and does successfully sudo pip install packages in virtualenv for me with no need to sym link.
gcc
i686-apple-darwin11-llvm-gcc-4.2
回答2:
Setting this environmental variable did it for me, without the need to mess around with Xcode or it's downloads.
ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future
回答3:
This worked for me when I had a similar problem.
http://www.computersnyou.com/2025/2013/06/install-command-line-tools-in-osx-10-9-mavericks-how-to/
回答4:
Not sure if this might help but maybe it's worth a try:
https://gist.github.com/3179227
回答5:
So I've resolved this issue from myself, but I kinda live in the wild west where I fix things now and worry about the correct way to do it when things break. I just made a symbolic link so that stdargs.h is in a reasonable location where it will be seen when requested.
sudo ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk/System/Library/Frameworks/Kernel.framework/Versions/A/Headers/stdarg.h /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk/usr/include/stdarg.h
You may have to alter "MacOSX10.8.sdk" to be the one you're currently using. Hopeful
来源：https://stackoverflow.com/questions/11716107/gcc-4-2-error-on-mac-os-x-mountain-lion-unable-to-install-some-packages-with-pi