注意：当使用easy_install、其他安装方式时，也会发生同样的错误。。。
我面临的问题几乎与I'm trying to install psycopg2 onto Mac OS 10.6.3; it claims it can't find "stdarg.h" but I can see it's there; what should I do?完全相同，只是我在OSX Lion（10.7）和Python v2.7上。
它似乎也与Can't install psycopg2 with pip in virtualenv on Mac OS X 10.7有关，但我得到了一个不同的错误消息。
我提出了一个新问题，因为适用于OSX 10.6的解决方案（如http://mail.python.org/pipermail/pythonmac-sig/2009-September/021617.html）对我不起作用。
我正在为Django做关于Heroku的教程（https://devcenter.heroku.com/articles/django），
尝试安装psycopg2时遇到错误。这是线索：
Downloading/unpacking psycopg2
Running setup.py egg_info for package psycopg2
no previously-included directories found matching 'doc/src/_build'
Installing collected packages: psycopg2
Running setup.py install for psycopg2
building 'psycopg2._psycopg' 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 -DPSYCOPG_DEFAULT_PYDATETIME=1 -DPSYCOPG_VERSION="2.4.5 (dt dec pq3 ext)" -DPG_VERSION_HEX=0x090005 -DPSYCOPG_EXTENSIONS=1 -DPSYCOPG_NEW_BOOLEAN=1 -DHAVE_PQFREEMEM=1 -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -I. -I/usr/include -I/usr/include/postgresql/server -c psycopg/psycopgmodule.c -o build/temp.macosx-10.6-intel-2.7/psycopg/psycopgmodule.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 ./psycopg/psycopg.h:30,
from psycopg/psycopgmodule.c:27:
/Developer/SDKs/MacOSX10.6.sdk/usr/include/stdarg.h:4:25: error: stdarg.h: No such file or directory
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 ./psycopg/psycopg.h:30,
from psycopg/psycopgmodule.c:27:
/Developer/SDKs/MacOSX10.6.sdk/usr/include/stdarg.h:4:25: error: stdarg.h: No such file or directory
lipo: can't figure out the architecture type of: /var/tmp//ccHla8Gp.out
error: command 'gcc-4.2' failed with exit status 1
Complete output from command /Users/AndyFang/Desktop/code/venv/bin/python -c "import setuptools;__file__='/Users/AndyFang/Desktop/code/venv/build/psycopg2/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-ONvqYm-record/install-record.txt --install-headers /Users/AndyFang/Desktop/code/venv/bin/../include/site/python2.7:
running install
running build
running build_py
running build_ext
building 'psycopg2._psycopg' 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 -DPSYCOPG_DEFAULT_PYDATETIME=1 -DPSYCOPG_VERSION="2.4.5 (dt dec pq3 ext)" -DPG_VERSION_HEX=0x090005 -DPSYCOPG_EXTENSIONS=1 -DPSYCOPG_NEW_BOOLEAN=1 -DHAVE_PQFREEMEM=1 -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -I. -I/usr/include -I/usr/include/postgresql/server -c psycopg/psycopgmodule.c -o build/temp.macosx-10.6-intel-2.7/psycopg/psycopgmodule.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 ./psycopg/psycopg.h:30,
from psycopg/psycopgmodule.c:27:
/Developer/SDKs/MacOSX10.6.sdk/usr/include/stdarg.h:4:25: error: stdarg.h: No such file or directory
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 ./psycopg/psycopg.h:30,
from psycopg/psycopgmodule.c:27:
/Developer/SDKs/MacOSX10.6.sdk/usr/include/stdarg.h:4:25: error: stdarg.h: No such file or directory
lipo: can't figure out the architecture type of: /var/tmp//ccHla8Gp.out
error: command 'gcc-4.2' failed with exit status 1
----------------------------------------
Command /Users/AndyFang/Desktop/code/venv/bin/python -c "import setuptools;__file__='/Users/AndyFang/Desktop/code/venv/build/psycopg2/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-ONvqYm-record/install-record.txt --install-headers /Users/AndyFang/Desktop/code/venv/bin/../include/site/python2.7 failed with error code 1 in /Users/AndyFang/Desktop/code/venv/build/psycopg2
Storing complete log in /Users/AndyFang/.pip/pip.log
我不知道为什么它找不到史达格！我在网上查了很多答案，都没有结果。
最佳答案
看起来您的生成环境已损坏。stdarg.h是核心gcc头文件的一部分。在我的（Fedora16Linux）系统stdarg.h位于/usr/lib/gcc/x86_64-redhat-linux/4.6.2/include/stdarg.h中，并且是gcc包的一部分。
在苹果平台上，我希望它是随XCode一起发布的。据猜测，您安装了多个编译器/工具链，它们的包含路径变得混乱。我建议完全卸载XCode和它的所有朋友，删除相关的目录以摆脱散乱的程序，然后重新安装。
关于python - 无法在virtualenv中安装psycopg2“错误:stdarg.h:没有这样的文件或目录”，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/10327503/