[Ipopt] Strange problem in building 3.5.4

[Stefan Vigerske]

Hi,

The config.log file in the Ipopt subdirectory
(Ipopt-3.5.4/Ipopt/config.log ?) should tell you why -lblas did not
work. Maybe there are additional dependencies.

Stefan

> I'm having this strange problem building version 3.5.4 and was wondering if someone could impart some sage wisdom.
> 
> Here are the results of doing a configure, no special flags--even though I know that I will need them later because the target system is Mac OS X 10.5.
> 
> .
> .
> .
> checking whether finite is declared... yes
> checking whether va_copy is declared... yes
> checking whether drand48 is declared... yes
> checking whether rand is declared... yes
> checking whether srand is declared... yes
> checking whether -lblas has BLAS... no
> configure: error: cannot find BLAS
> configure: error: /bin/sh './configure' failed for Ipopt
> Justin:Ipopt-3.5.4 melrobin$
> Now I have BLAS, actually a libblas.a which is symbolically linked to ATLAS:
> Justin:Ipopt-3.5.4 melrobin$ ls -l /usr/lib/libblas.a
> lrwxr-xr-x  1 root  wheel  19 Oct 23 21:44 /usr/lib/libblas.a -> /usr/lib/libatlas.a
> Justin:Ipopt-3.5.4 melrobin$ ls -l /usr/lib/libatlas.a
> -rw-r--r--  1 root  wheel  10314920 Jun 23  2008 /usr/lib/libatlas.a
> 
> Shouldn't this be OK?  Everything worked in the previous version of Ipopt.  I do not recall having to compile the obtain and compile the BLAS and LAPACK that is included in order to get things working.  Is my memory failing me or do you have any ideas?
> 
> 
> 
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-- 
Stefan Vigerske
Humboldt University Berlin, Numerical Mathematics
http://www.math.hu-berlin.de/~stefan