Thanks! I will consider contributing fixes...if I manage to create fixes. Cheers, David On Tue, 2009-03-24 at 21:06 -0400, John W. Eaton wrote: > On 24-Mar-2009, David A. Ventimiglia wrote: > > | I think I solved one of my problems. Evidently, there's an Autoconf > | macro AC_LANG. By adding AC_LANG(Fortran) to my configure.ac file, it > | ensures that test programs are written in Fortran rather than in C, and > | that seems sufficient to find sgetrf in liblapack. > | > | Now, onto the next issue! Which is this: > | > | The reference implementation of LAPACK is relatively simple. I just have > | to link my application using -llapack, and it works. > | > | The Intel MKL implementation is in pieces, with dependencies. On a > | 64-bit platform, I have to link using -lmkl_lapack -lmkl_em64t -lguide > | -lpthread. > | > | > | First, how do I get the AC_SEARCH_LIBS([sgetrf],[lapack mkl_lapack]) > | test to work? After all, in order to work, the test program that > | AC_SEARCH_LIBS writes would have also to link to mkl_em64t, guide, and > | pthread, otherwise it gets 'undefined reference' to functions in those > | files, the link step fails, and it concludes that it has not found > | sgetrf (which is in mkl_lapack). > | > | Second, how do I pass all this information onto the generated Makefile? > | After all, when using the reference lapack, I want only -llapack in the > | link line. When using Intel MKL, I want -lmkl_lapack -lmkl_em64t > | -lguide -lpthread. > > I recommend using the acx_blas and acx_lapack macros from the Autoconf > macro archive: http://autoconf-archive.cryp.to > > Direct links to the macros you'll need: > > http://autoconf-archive.cryp.to/acx_blas.html > http://autoconf-archive.cryp.to/acx_lapack.html > http://autoconf-archive.cryp.to/acx_blas_f77_func.html > > But although the macros from the archive try to find blas functions in > -lmkl, they don't seem to know about the other libraries you mention. > If those are actually needed, then maybe it would be good if you could > contribute fixes for the existing macros. > > jwe > > > _______________________________________________ > Autoconf mailing list > Autoconf@xxxxxxx > http://lists.gnu.org/mailman/listinfo/autoconf > _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
