Pycrypto install fatal error: gmp.h file not found

Question

It seems like there are a number of people who have had a similar problem, however, after much searching I haven't been able to find a solution that works with my particular architecture. I'm trying to install Pycrypto (as a subsidiary of Fabric) to no avail.

I'm running Mac 10.8.2, python 2.7.3 via Homebrew, and XCode 4.6 -- installing with pip or easy_install (I've tried both). From what I can tell, the problem could either be with respect to my version of XCode or because of my libraries. The Command Line Tools for XCode have been installed and I have tried placing setenv ARCHFLAGS "-arch i386 -arch x86_64" in my .cshrc file. I have also tried ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer /Developer. As for the libraries, I've tried linking them via ln -s /usr/local/lib/libgmp.dylib /usr/lib/libgmp.dylib - but that also didn't work.

The error is always the same (see below) no matter what angle I attempt. Any and all help would be appreciated.

/usr/local/share/python% pip install pycrypto Downloading/unpacking pycrypto   Running setup.py egg_info for package pycrypto  Installing collected packages: pycrypto   Running setup.py install for pycrypto     building 'Crypto.PublicKey._fastmath' extension     /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -fno-strict-aliasing -fno-common -dynamic -arch i386 -arch x86_64 -pipe -mmacosx-version-min=10.8 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk -Wno-unused-value -Wno-empty-body -Qunused-arguments -fwrapv -Wall -Wstrict-prototypes -std=c99 -O3 -fomit-frame-pointer -Isrc/ -I/usr/include/ -I/usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c src/_fastmath.c -o build/temp.macosx-10.8-intel-2.7/src/_fastmath.o src/_fastmath.c:36:11: fatal error: 'gmp.h' file not found # include <gmp.h>           ^ 1 error generated. error: command '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang' failed with exit status 1 Complete output from command /usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python -c "import setuptools;__file__='/var/folders/ym/v8l23q_x2xz_qhx3m84n6ym00005fr/T/pip-build/pycrypto/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/ym/v8l23q_x2xz_qhx3m84n6ym00005fr/T/pip-Xb7nGV-record/install-record.txt --single-version-externally-managed: running install  running build  running build_py  running build_ext  running build_configure  building 'Crypto.PublicKey._fastmath' extension  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -fno-strict-aliasing -fno-common -dynamic -arch i386 -arch x86_64 -pipe -mmacosx-version-min=10.8 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk -Wno-unused-value -Wno-empty-body -Qunused-arguments -fwrapv -Wall -Wstrict-prototypes -std=c99 -O3 -fomit-frame-pointer -Isrc/ -I/usr/include/ -I/usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c src/_fastmath.c -o build/temp.macosx-10.8-intel-2.7/src/_fastmath.o  src/_fastmath.c:36:11: fatal error: 'gmp.h' file not found  # include <gmp.h>        ^  1 error generated.  error: command '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain    /usr/bin/clang' failed with exit status 1  ---------------------------------------- Command /usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python -c "import setuptools;__file__='/var/folders/ym/v8l23q_x2xz_qhx3m84n6ym00005fr/T/pip-build/pycrypto/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/ym/v8l23q_x2xz_qhx3m84n6ym00005fr/T/pip-Xb7nGV-record/install-record.txt --single-version-externally-managed failed with error code 1 in /var/folders/ym/v8l23q_x2xz_qhx3m84n6ym00005fr/T/pip-build/pycrypto Storing complete log in /Users/me/.pip/pip.log 

The error when I try to call Fabric:

Traceback (most recent call last):   File "/usr/local/share/python/fab", line 5, in <module> from pkg_resources import load_entry_point   File "/usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 2815, in <module> working_set.require(__requires__)   File "/usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 690, in require needed = self.resolve(parse_requirements(requirements))   File "/usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 588, in resolve raise DistributionNotFound(req) pkg_resources.DistributionNotFound: pycrypto>=2.1,!=2.4 

Answer 1

If you use Homebrew, this should do the trick:

brew install gmp env "CFLAGS=-I/usr/local/include -L/usr/local/lib" pip install pycrypto 

Using env will only make it work for that invocation. If you need to install pycrypto at a later time in this session export the variable instead.

export "CFLAGS=-I/usr/local/include -L/usr/local/lib"  pip install pycrypto 

Answer 2

I was able to get PyCrypto to install using the following command:

CFLAGS=-I/opt/local/include pip install pycrypto 

I have GMP installed via MacPorts, running on OSX 10.8.3 with Python 2.7.2 from python.org. In this case I am installing into a virtualenv.

I do get the following warning when PyCrypto is used, but it still works:

/Users/me/.virtualenvs/blah/lib/python2.7/site-packages/Crypto/Util/number.py:57: PowmInsecureWarning: Not using mpz_powm_sec.  You should rebuild using libgmp >= 5 to avoid timing attack vulnerability.   _warn("Not using mpz_powm_sec.  You should rebuild using libgmp >= 5 to avoid timing attack vulnerability.", PowmInsecureWarning)