Ok, I created a numpy branch to implement this, and get something working. This is still really rough, though. Please check out the numpy.sunperf branch: svn co http://svn.scipy.org/svn/numpy/branches/numpy.sunperf And then, compile it with the following: SUNPERF=SUNPERFROOT python setup.py build --compiler=sun --fcompiler=sun where SUNPERFROOT is the root of your sunperf installation (for me: /opt/sun/sunstudio12/; SUNPERFROOT/lib/ shoudl contain libsunperf.so). If this works, I will then polish the code to avoid having to set SUNPERF variable. On Linux, this seems to work (all test pass), but there may be some things on solaris which prevent it from working. I have not tested scipy either, so that something you could try also if numpy works. cheers, David