Hi, Firstly thanks to everyone that has helped bring NumPy to the point it is today. Its an excellent bit of software. I've recently managed to get NumPy to compile on a 64 bit Solaris 10 (sparc) machine. We've embedded 64 bit Python in some of our C code using the Python C-API, and therefore require a 64 bit version of NumPy. I had to use a bit of a hack to get NumPy to compile in 64 bit mode, and I'm just wondering if there's a more elegant way of doing it? If I set CFLAGS to "-m64 -xcode=pic32", and CC to "/usr/bin/cc", it will raise the following error: ... snipped most of backtrace ... File "/home/leblanc/source/numpy/numpy/distutils/command/build_src.py", line 385, in generate_sources source = func(extension, build_dir) File "numpy/core/setup.py", line 675, in get_mathlib_info raise RuntimeError("Broken toolchain: cannot link a simple C program") However, if I create a wrapper script and set CC to the path of the wrapper, then it will build normally and create a NumPy module I can use from the 64 bit version of Python installed on the system (/usr/bin/sparcv9/python). Here's the wrapper: #!/bin/sh /usr/bin/cc -m64 -xcode=pic32 $* I did a bit of googling and couldn't find much information on this issue (which is why I wanted to post this message, so others could find it). I'm satisfied with the results, but wondering if there's a better way to do it. Cheers, Chris Chris LeBlanc GNS Science