[Bug-gsl] allow user to choose cblas via pkg-config

[Peter Johansson]

Hello,

Attached please find a patch for file `gsl.pc'. Currently when using 
gsl-config one can choose cblas lib for example via

export GSL_CBLAS_LIB=-lfoo; gsl-config --libs

The attached patch would allow something similar for pkg-config users. 
By calling

pkg-config --define-variable=GSL_CBLAS_LIB=-lfoo --libs gsl

the user tells pkg-config that (s)he wanna use cblas lib 'foo' and 
pkg-config will output

-L/usr/local/lib -lgsl -lfoo -lm


I've also attached a test, pkgconfig.test, that can be run from the test 
directory and which might be useful to add as a part of 'make check' 
(TESTS = pkgconfig.test).


Cheers,
--
Peter Johansson
yat maintainer, http://dev.thep.lu.se/yat/

gsl.pc.in.patch
Description: Text document

pkgconfig.test
Description: Text document