ompl @1.2.1: build hangs

[ryandesign (Ryan Carsten Schmidt)]

Building ompl hangs either immediately or shortly after:

[ 80%] Creating C++ code for Python module geometric (see pyplusplus_geometric.log)
cd /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_dports_science_ompl/ompl/work/build/py-bindings && time /opt/local/bin/python2.7 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_dports_science_ompl/ompl/work/ompl-1.2.1-Source/py-bindings/generate_bindings.py geometric 2>&1 | tee /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_dports_science_ompl/ompl/work/build/pyplusplus_geometric.log
INFO Parsing source file "bindings/geometric.h" ... 

No output is produced for 20 minutes, which causes the buildbot to terminate the build.

• ​https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/1701
• ​https://build.macports.org/builders/ports-10.10_x86_64-builder/builds/1679
• ​https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/1683

[mamoll (Mark Moll)]

It's not hanging; it's just incredibly slow. It's a known problem in pygccxml (a python module used in the python binding generation) that people are working on. See ​https://github.com/gccxml/pygccxml/issues/56.

[mamoll (Mark Moll)]

In the current version more diagnostic output is produced to let the user know that the build is not stuck. It is still a very slow build process, though.