Re: SLATEC error: Chebyshev series too short for specified accuracy

[Ben Abbott]

On Feb 22, 2011, at 9:32 AM, Camillo wrote:

> On 22/feb/2011, at 14.12, Ben Abbott wrote:
> 
>> On Feb 22, 2011, at 6:53 AM, Camillo wrote:
>> 
>>> Hello,
>>> 
>>> I am working on a Mac build of Octave 3.4.0. It's almost complete: it 
>>> passes 6908 tests, has 2 known failures, and 5 unexpected ones. All of 
>>> these five are due to the same issue, an exception inside SLATEC: 
>>> "Chebyshev series too short for specified accuracy". I don't know Fortran 
>>> and I'm not sure how to best debug the issue. The compilers I am using are 
>>> gcc and gfortran 4.2.1.
>>> 
>>> Any ideas?
>>> 
>>> Best regards,
>>> Camillo Lugaresi
>> 
>> I've not seen this error.
>> 
>> Where did you get your gfortran?
> 
> http://r.research.att.com/gfortran-42-5664.pkg
> 
>> What dependencies did you install?
> 
> All, except for gnuplot and ghostscript.
> 
>> What was the result of running ./configure? (it gives a summary at the end)
>> 
>> Finally, please copy-n-paste the actual error.
> 
> I'll attach the configure summary and the output of make check. I'm throwing 
> in fntests.log as well.
> 
> Thanks,
> Camillo
> 
> <configure summary><tests><fntests.log>

There may be another problem, but since you're building a 64bit app you'll need 
to take care of a bug in Apple's blas.

The problem is discussed in the developer's copy of README.MacOS

        http://hg.savannah.gnu.org/hgweb/octave/file/64ae43e0e1c0/README.MacOS

There is a patch intended for the developer's sources at the link below that 
will allow the configure script to detect the problem and apply the wrapper.

        https://savannah.gnu.org/patch/?7468

Ben