Over the weekend, I helped out a couple people trying out the gr-howto example on OSX < http://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModules >. The common are of issue -- which admittedly is primarily an OSX issue -- is that the Python info which was used by GNU Radio's CMake build system was not carried over into gr-modtool's CMake build system. Instead, the latter looks for Python again -- and, in this case if the correct CMake flags are -not- set, then CMake finds the system install of Python instead of the MacPorts version. Since these folks are using GNU Radio as installed by MacPorts, it's quite important for the Python being used (header, library, executable, and GR_PYTHON_DIR location) to be the same between the main GR install and whatever gr-modtool sets up. So, my proposal is to modify gr-modtool to hard-wire these variables as found for the main GR install. And, any other variables that make sense to add in -- basically: why re-find the wheel? I think the Python ones are the only critical ones (for proper execution), but there are likely a few for document building that could also be added. Thoughts? - MLD
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