Trouble installing numeric

Robert Kern rkern at
Sun Jan 30 02:38:15 EST 2005

Chris Weisiger wrote:
> 	I'm trying to install numeric on my MacOS X box using Darwin, with the 
> eventual goal of satisfying all of PyGame's dependencies so I can 
> finally start working on my semester project. I would be using MacPython, 
> except that I can't seem to get its Package Manager to work. Anyway, 
> when I try to install numeric, I get the following error: 
> [HMC-58-125:~/proj/Numeric-23.7] chriswei% sudo ./ install
> Password:
> running install
> running build
> running build_py
> running build_ext
> building 'lapack_lite' extension
> gcc -Wl,-F. -Wl,-F. -bundle -framework Python build/temp.darwin-7.6.0-
> Power_Macintosh-2.3/Src/lapack_litemodule.o build/temp.darwin-7.6.0-
> Power_Macintosh-2.3/Src/blas_lite.o build/temp.darwin-7.6.0-Power_
> Macintosh-2.3/Src/f2c_lite.o build/temp.darwin-7.6.0-Power_Macintosh-2.3/
> Src/zlapack_lite.o build/temp.darwin-7.6.0-Power_Macintosh-2.3/Src/
> dlapack_lite.o -L/usr/lib/atlas -llapack -lcblas -lf77blas -latlas -lg2c -
> o build/lib.darwin-7.6.0-Power_Macintosh-2.3/ -framework 
> vecLib
> ld: can't locate file for: -llapack
> error: command 'gcc' failed with exit status 1
> Previously it had been complaining about a missing directory '/usr/lib/
> atlas', but I just created that (without any idea what it wanted it for 
> or why it couldn't create it itself, natch).

You can delete it. That is the directory specified by default to look 
for the ATLAS libraries which are a portable optimized LAPACK and BLAS. 
You don't need it on the Mac because you have vecLib, which is an 
Apple-provided version of ATLAS, pre-installed.

> From what I've found online, 
> it's now having problems because a linear algebra module it needs (
> lapack) can't be found. However, isn't numeric supposed to have its own 
> "light" linear algebra code?

Yes, however, the ATLAS or vecLib libraries will be much, much faster.

> Looking in, I found the following 
> section: 
> # delete all but the first one in this list if using your own LAPACK/
> sourcelist = [os.path.join('Src', 'lapack_litemodule.c'),
> #              os.path.join('Src', 'blas_lite.c'),
> #              os.path.join('Src', 'f2c_lite.c'),
> #              os.path.join('Src', 'zlapack_lite.c'),
> #              os.path.join('Src', 'dlapack_lite.c')
> ]             ]
> I tried uncommenting the lines, but no dice. 

Also modify the library_dirs_list and libraries_list variables, but keep 
these *_lite.c files commented out.

library_dirs_list = []
libraries_list = []

That way, Numeric will just pick up vecLib.

This is fixed in CVS.

Robert Kern
rkern at

"In the fields of hell where the grass grows high
  Are the graves of dreams allowed to die."
   -- Richard Harter

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