Hi, I'm trying to install SciPy on my Mac OS X 10.2.2 box. After following INSTALL.txt to install the prerequisites, I run "python setup.py build" which fails at the following command: cc -Wl,-F. -Wl,-flat_namespace,-U,_environ -bundle -framework Python build/temp.darwin-6.2-Power_Macintosh-2.2/fortranobject.o build/temp.darwin-6.2-Power_Macintosh-2.2/fblasmodule.o -L/usr/local/lib/atlas -Lbuild/temp.darwin-6.2-Power_Macintosh-2.2 -Lbuild/temp.darwin-6.2-Power_Macintosh-2.2 -lfblas -llapack -lf77blas -lcblas -latlas -lc_misc -lcephes -lrootfind -lg2c -o build/lib.darwin-6.2-Power_Macintosh-2.2/scipy/linalg/fblas.so ld: Undefined symbols: _atl_f77wrap_caxpy__ _atl_f77wrap_ccopy__ _atl_f77wrap_cgemm__ _atl_f77wrap_cgemv__ _atl_f77wrap_chemv__ _atl_f77wrap_crotg__ _atl_f77wrap_cscal__ _atl_f77wrap_csscal__ _atl_f77wrap_cswap__ ... snip ... I don't know where those symbols are (or should be defined), nor am I a library file expert-- does anyone know where these symbols are defined and how I can get SciPy to build? Perhaps the errors above are related to the following: I used the instructions in INSTALL.txt to compile LAPACK and ATLAS, including the usage of "ar" to create an ATLAS optimized LAPACK library, which I placed in /usr/local/lib/atlas/. If I run ranlib on this liblapack.a I get the following errors. The names of the objects seem to be intriguingly similar but not identical to the undefined symbols above. $ ranlib /usr/local/lib/atlas/liblapack.a ranlib: same symbol defined in more than one member in: /usr/local/lib/atlas/liblapack.a (table of contents will not be sorted) ranlib: file: /usr/local/lib/atlas/liblapack.a(ATL_f77wrap_sgesv.o) defines symbol: _F77WRAP_GESV ranlib: file: /usr/local/lib/atlas/liblapack.a(ATL_f77wrap_cgesv.o) defines symbol: _F77WRAP_GESV ranlib: file: /usr/local/lib/atlas/liblapack.a(ATL_f77wrap_dgesv.o) defines symbol: _F77WRAP_GESV ranlib: file: /usr/local/lib/atlas/liblapack.a(ATL_f77wrap_zgesv.o) defines symbol: _F77WRAP_GESV ... snip ... Any help would be greatly appreciated! Thanks, Andrew