hmatrix

[Edward Z. Yang]

Hello Adrian,

This sounds like a definite bug in Cabal, in that it should report
accordingly if it is looking for both static and dynamic versions
of the library, and only finds the static one.  Can you file a bug
report?

Thanks,
Edward

Excerpts from Adrian Victor Crisciu's message of 2014-08-23 23:45:48 +0100:
> After 3 days of frustrating trials and errors, I managed to install the new
> hmatrix package on Slackware 13.1. I post this message in case anyone else
> hits the same problem, as the process requires some alteration of the
> standard build process of ATLAS, LAPACK, hmatrix and hmatrix-gsl. The
> following steps assume that LAPACK is built against an optimized ATLAS
> library.
> 
> 1.) By default, ATLAS builds only static libraries. However, hmatrix needs
> shared objects, so ATLAS should be configured with the --share option and,
> after the build is complete, the commands "make shared" and/ore "make
> ptshared" need to be issued in BUILDDIR/lib
> 
> 2.) LAPACK also buils by default only static libraries and, for the same
> reason as above, we need position independent conde in ALL the objects in
> liblapack. In order to do this we need to
>       2.1.) Add -fPIC to OPTS, NOOPT and LOADOPT in LAPACKROOT/make.inc
>        2.2.) Change the BLASLIB macro in the same file to point to the
> optimized tatlas (os satlas) library
>       2.3.) Add the target liblapack.so to SRC/Makefile:
>               ../liblapack.so: $(ALLOBJ)
>                         gfortran -shared -W1 -o $@ $(ALLOBJ)
> (This step is a corected version of
> http://theoryno3.blogspot.ro/2010/12/compiling-lapack-as-shared-library-in.html
> )
> 
> 3.) Change the extra-libraries line in hmatrix.cabal to read:
>       extra-libraries: tatlas lapack
> 
> 4.) Change the extra-library line in hmatrix-gsl to read:
>        extra-libraries: gslcblas gsl
> 
> Again, this procedure worked for may Slackware 13.1 linux box, but I think
> it will work on any decent linux machine.
> 
> Thanks everyone for your time and useful comments!
> Adrian Victor.