Created attachment 154930 [details]
Depend on nose module instead of executable

devel/py-nose allows concurrent installation, but tailors its plist based on whether it is being built against the default version of python. For example, with

    DEFAULT_VERSIONS=python=2.7 python2=2.7 python3=3.4
    PYTHON_VERSION=python3.4

we see that

    % pkg info -l -F py27-nose-1.3.4.txz | grep bin
            /usr/local/bin/nosetests-2.7
            /usr/local/bin/nosetests
    % pkg info -l -F py34-nose-1.3.4.txz | grep bin
            /usr/local/bin/nosetests-3.4

math/py-numpy depends on devel/py-nose like this:

    RUN_DEPENDS=nosetests:${PORTSDIR}/devel/py-nose

So it cannot detect that the dependency is satisfied when /usr/local/bin/nosetests is not installed.

Without the attached patch:

    % pkg info -d -F py34-numpy-1.9.2,1.txz
    py34-numpy-1.9.2,1:
            blas-3.5.0_3
            gcc-4.8.4_1
            lapack-3.5.0
            py34-setuptools34-5.5.1_1
            python34-3.4.3
            suitesparse-4.0.2_4

With the attached patch:

    % pkg info -d -F py34-numpy-1.9.2_1,1.txz
    py34-numpy-1.9.2_1,1:
            blas-3.5.0_3
            gcc-4.8.4_1
            lapack-3.5.0
            py34-nose-1.3.4
            py34-setuptools34-5.5.1_1
            python34-3.4.3
            suitesparse-4.0.2_4

This may affect other ports too, though some may actually require a "nosetests" executable without the version-specific suffix.