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Comments pertaining to Mac OS/X users

Installing NLPy will be much easier if you use Homebrew (http://mxcl.github.com/homebrew). Follow the instructions to install Homebrew. Then, the following dependencies can be installed automatically in /usr/local:

brew install adol-c --enable-sparse     # will also install Colpack
brew install cppad
brew install boost --build-from-source  # to use pycppad
brew install asl                        # instead of libampl
brew install metis
brew install gfortran

Troubleshooting

  1. If compiling on Leopard (10.5.*), you may receive the error message:

    undefined symbol: _strtod_ASL

    The problem is coming from the flags used to build the LibAmpl libraries. The solution is to add the flag:

    -mmacosx-version-min=10.4

    to the compiler options and to rebuild LibAmpl, i.e., switch to $LIBAMPL and issue the command 'make mrclean ; make' at the command line.

  2. If compiling on Snow Leopard (10.6.*), you may receive error messages related to the architecture being linked (and the build might fail). One solution seems to be to set the environment variables CFLAGS, FFLAGS and LDFLAGS appropriately before building. For example:

    CFLAGS='-arch x86_64 -mmacosx-version-min=10.5' \
FFLAGS='-arch x86_64 -mmacosx-version-min=10.5' \
LDFLAGS='-arch x86_64 -Wall -undefined dynamic_lookup -bundle -mmacosx-version-min=10.5' \
python setup.py build config_fc --fcompiler=gfortran

    (all on one line). See, e.g., http://goo.gl/LNaA

    Note that LibAmpl should have been built using the same flags.