[SciPy-dev] Confused over site.cfg

[Pierre GM]

Folks,
I just spent the last 6 hours trying to compile scipy from the SVN, with 
various success. Note that in each of the following examples, I had removed 
any previous scipy installation and build directory.

* Running setup.py install without creating a site.cfg resulted in an 
apparently successful compilation. However, import scipy.stats failed because 
of z_abs being undefined in scipy/linalg/fblas.so. Turned out that c_abs 
wasn't defined either.
ImportError: /usr/lib64/python2.4/site-packages/scipy/linalg/fblas.so: 
undefined symbol: z_abs

* Uncommented the lapack_opt, blas_opt and DEFAULT sections in 
site.cfg.example and renaming the file to site.cfg gave the same results.

* Defining a [atlas] section, with `atlas_libs=lapack, blas, f77blas, cblas, 
atlas` eventually worked (I was able to import scipy.stats).

What bothers me is that the use of [atlas] seems to be deprecated (as stated 
in site.cfg.example). So what's happening ? In the three cases, my atlas 
version was properly recognized (you'll find the info below).

Any hint would be welcomed (and I'm not modifying my site.cfg any more...)

Thanks
P.

#----------------------------------------
ATLAS version 3.8.2 built by root on Thu Jun 19 14:40:27 EDT 2008:
   UNAME    : Linux back2tux 2.6.22-suspend2-r1 #8 Fri Feb 15 17:00:17 EST 
2008 x86_64 Mobile AMD Athlon(tm) 64 Processor 3400+ AuthenticAMD GNU/Linux
   INSTFLG  : -1 0 -a 1
   
ARCHDEFS : -DATL_OS_Linux -DATL_ARCH_HAMMER -DATL_CPUMHZ=2205 -DATL_SSE2 -DATL_SSE1 -DATL_3DNow -DATL_USE64BITS -DATL_GAS_x8664
   F2CDEFS  : -DAdd_ -DF77_INTEGER=int -DStringSunStyle
   CACHEEDGE: 262144
   F77      : gfortran, version GNU Fortran 95 (GCC) 4.1.2 (Gentoo 4.1.2 
p1.0.1)
   F77FLAGS : -O2 -m64
   SMC      : x86_64-pc-linux-gnu-gcc, version x86_64-pc-linux-gnu-gcc (GCC) 
4.1.2 (Gentoo 4.1.2 p1.0.1)
   SMCFLAGS : -march=k8 -O2 -pipe -m64
   SKC      : x86_64-pc-linux-gnu-gcc, version x86_64-pc-linux-gnu-gcc (GCC) 
4.1.2 (Gentoo 4.1.2 p1.0.1)
   SKCFLAGS : -march=k8 -O2 -pipe -m64