OpenVDB-3.1.0: Makefile doesn't respect certain options revert back to default.

[dracwyrm]

When compiling with make, certain options are not properly used.

The full command line used is this:
make -j2 rpath=no shared=yes DESTDIR=/var/tmp/portage/media-gfx/openvdb-3.1.0/image/usr HFS=/usr HT=/usr HDSO=/usr/lib64 GLFW_INCL_DIR=/usr/lib64 GLFW_LIB_DIR=/usr/lib64 BLOSC_INCL_DIR=/usr/include BLOSC_LIB_DIR=/usr/lib64 EPYDOC= DOXYGEN= LIBOPENVDB_RPATH= CPPUNIT_INCL_DIR=/usr/include/cppunit CPPUNIT_LIB_DIR=/usr/lib64 LOG4CPLUS_INCL_DIR=/usr/include/log4cplus LOG4CPLUS_LIB_DIR=/usr/lib64 PYTHON_VERSION=3.5 PYTHON_INCL_DIR=/usr/include/python3.5m PYCONFIG_INCL_DIR=/usr/include/python3.5m PYTHON_LIB_DIR=/usr/lib64/libpython3.5m.so PYTHON_LIB=-lpython3.5m NUMPY_INCL_DIR=/usr/lib64/python3.5/site-packages/numpy/core/include/numpy BOOST_PYTHON_LIB_DIR=/usr/lib64 BOOST_PYTHON_LIB=-lboost_python-3.5

However, DESTDIR, EPYDOC, and DOXYGEN revert back to the default settings in Makefile. The other options seem to work, as the respected libraries are found. How do I get the Make file to properly respect the options passed to it on the make line?

Thanks,
Jon

[dracwyrm]

During the install phase, the variable information gets lost, as you can see here:

>>> Install openvdb-3.1.0 into /var/tmp/portage/media-gfx/openvdb-3.1.0/image/ category media-gfx
make -j2 DESTDIR=/var/tmp/portage/media-gfx/openvdb-3.1.0/image/ install 
Generating documentation because of doxygen-config and others
echo 'OUTPUT_DIRECTORY=./doc' | cat doxygen-config - | doxygen - > /dev/null
Generating Python module documentation because of pyopenvdb.so libopenvdb.so.3.1
pydocdir=doc/html/python; \
mkdir -p ${pydocdir}; \
echo "Created ${pydocdir}"; \
export LD_LIBRARY_PATH=:/var/tmp/portage/media-gfx/openvdb-3.1.0/work/openvdb; \
export PYTHONPATH=:/var/tmp/portage/media-gfx/openvdb-3.1.0/work/openvdb; \
    epydoc --html --html-dir ${pydocdir} pyopenvdb > /dev/null
Created doc/html/python
/bin/bash: line 5: epydoc: command not found

The install phase should use the same variable information that was passed to it on the initial make command.

[dracwyrm]

Submitted PR. Hard coded install path was causing access violation.