Hi, I have just finished to implement everything I wanted to do for a 2nd alpha for numpy.scons. Most of the work since 1st alpha was infrastructure polishing (performance library, fortran): now, most common performance libraries are fully supported (MKL and ATLAS on linux, sunperf on solaris, vecLib/Accelerate on Mac OS X). I would appreciate people testing the branch http://projects.scipy.org/scipy/numpy/wiki/NumpyScons#Gettingthecode There are minor problem preventing the thing to build on windows for some reasons, but this will be fixed soon. Basically, the whole design is now done, and it should be able to support all the platforms (and more) currently supported by numpy.distutils. I would really like to hear about people intimated with numpy.distutils, and package developers for some things I may have missed. I think numpy.scons is now much better and easier as a build system, but I am obviously biased. Most significant changes since 1st alpha: Documentation ============= I started to put more documentation on the numpy wiki: http://projects.scipy.org/scipy/numpy/wiki/NumpyScons There is also some basic description on the design: http://projects.scipy.org/scipy/numpy/browser/branches/numpy.scons/numpy/dis... Configuration check ===================  performance libraries are globally supported (default and site.cfg configuration): MKL, ATLAS, Accelerate/vecLib and Sunperf are implemented. Adding a new performance library can be as easy as a 5 lines code.  'meta' checkers are now reusing code from performance libraries: Both CBLAS and LAPACK are implemented. This means that numpy can now be entirely built with scons, using optimized libraries on the following platforms:  solaris with sunperf and sunstudio (this one has not been extensively tested: it looks like every solaris machine I have access to behaves really differently).  mac os X and Gnu toolchain  linux + ATLAS/MKL + gnu toolchain I am now relatively happy with the code for BLAS/LAPACK and performance libraries implementation. It is easily extensible and quite flexible. Generci library check ===================== I have updated and improved the basic checker, NumpyCheckLibAndHeader. This should cover most basic needs (check for a library with some functions and some headers), and should be able to replace system_info for many cases. For example, the following will check for the function sf_open in the library sndfile, with header sndfile.h: config.NumpyCheckLibAndHeader(*'sndfile'*, *'sf_open'*, *'sndfile.h'*, section = *'sndfile'*) section is optional, and tells the checker to use sndfile section in site.cfg if found. Fortran support =============== I have polished fortran support: in perticular, name mangling for F77 and F90 is implemented and has been tested with g77/gfortran/ifort/sunfort on various platforms. It also defines variables usable by f2py (http://projects.scipy.org/scipy/numpy/wiki/NumpySconsExtExamples#UsingFortra...). cheers, David
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David Cournapeau