#17075: Install blas pkgconfig files
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Reporter: vbraun | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.4
Component: build | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by fbissey):
Replying to [comment:5 jpflori]:
> My only comment so far is that we should take care of the strange
variable LINBOX_BLAS set up by linbox/fflas-ffpack, written in
share/cblas_config, and used in modules_list.py IIRC.
*yes* so the file is created by the fflas-ffpack spkg for consumption in
linbox. fflas-ffpack provides a fflas-ffpack-config which you would think
would help...
{{{
(sage-sh) fbissey@QCD-nzi3:sage-6.3.beta7$ fflas-ffpack-config --blas-libs
-L/home/work/fbissey/sandbox/sage-6.3.beta7/local/lib -lcblas -latlas
-L/home/work/fbissey/sandbox/sage-6.3.beta7/local/lib -llapack
}}}
And the problem with that output is lapack. My foggy memory tells me that
configuring linbox with lapack leads to troubles in sage-on-gentoo (needs
re-checking). If we move to .pc we can forget about the whole LINBOX_BLAS
business. In sage-on-gentoo I patched fflas-ffpack to use pkg-config
directly to find blas/cblas (but I commented lapack out)
https://github.com/cschwan/sage-on-gentoo/blob/master/sci-libs/fflas-
ffpack/files/fflas-ffpack-1.6.0-blaslapack-3.patch
Strangely enough I don't need to do anything in linbox to pick up the
right blas and I think the whole cblas-config is not useful in linbox
because configure will call fflas-ffpack-config to get its values for
BLAS_LIBS and BLAS_CFLAGS. I also cannot find a trace of cblas_config in
module_list.py - that would have got my attention in sage-on-gentoo.
--
Ticket URL: <http://trac.sagemath.org/ticket/17075#comment:6>
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