[cctbxbb] forcing building boost_python early in SConscript

[Robert Oeffner]

We are working on a newer version of Phaser. The new SConscript file for 
Phaser imports features from boost_python. Therefore it is currently not 
straightforward to build it since an empty build directory does not yet 
contain the boost_python module to be imported by SConscript (or 
python). So SCons crashes when it reads the new Phaser SCsonscript 
stating that boost_python cannot be imported. Currently our workaround 
is to first build CCTBX alone and then subsequently to build Phaser.

My question is if it is possible to specify dependencies in 
cctbx_project/boost_adaptbx/SConscript to force building boost_python 
early on. On Windows boost_thread and a few other libraries are built 
before other SConscript files are read. So I have put some
Depends(boost_thread,  boost_python) andDepends(boost_thread, 
boost_python_meta_ext)
statements into cctbx_project/boost_adaptbx/SConscript. These do seem to 
force building the boost_python.lib and .dll files. But building the 
boost_python_meta_ext python module fails with the error:
boost_adaptbx\meta_ext.cpp(14): fatal error C1083: Cannot open include 
file: 'boost_adaptbx/type_id_eq.h'

It's possible that I'm not using SCons as it's supposed to be used. Let 
me know if anyone has a suggestion on how to force building boost_python 
before other SConscript are read.


Many thanks,


Rob

-- 
Robert Oeffner, Ph.D.
Research Associate, The Read Group
Department of Haematology,
Cambridge Institute for Medical Research
University of Cambridge
Cambridge Biomedical Campus
Wellcome Trust/MRC Building
Hills Road
Cambridge CB2 0XY

www.cimr.cam.ac.uk/investigators/read/index.html
tel: +44(0)1223 763234