# $Id$

PortSystem         1.0

categories         math
name               atlas
version            3.8.2

# additional versions
set lapackversion  3.1.1
set lapackname     lapack
set atlasdist      ${name}${version}.tar.bz2
set lapackdist     ${lapackname}-${lapackversion}.tgz

maintainers        cornell.edu:ajb78
platforms          darwin

description        Portable optimal linear algebra software
long_description   The current version provides a complete BLAS and LAPACK API.\
                   For many operations, ATLAS achieves performance on par with\
                   machine-specific tuned libraries.

homepage           http://math-atlas.sourceforge.net/

master_sites       sourceforge:math-atlas/${name}${version}.tar.bz2:atlas\
                   http://www.netlib.org/lapack:lapack

distfiles          ${atlasdist}:atlas \
                   ${lapackdist}:lapack

checksums          ${atlasdist} \
                   md5 dd888f5d066c1fafeaaf2ae6b37e0b85 \
                   sha1 2d1f2f789f57c9e7e8957f275b67c33176a36e0c \
                   rmd160 8160ccb3af7cd7365ba87c77d636fb68b24c62ae \
                   ${lapackdist} \
                   md5 00b21551a899bcfbaa7b8443e1faeef9 \
                   sha1 be1a3d53d761935703a7be88c3dd1164daa79554 \
                   rmd160 ba864e7a2b759ba1337ea9a452e12a7ab5494cdc

extract {
    # extract atlas and move to a consistent working directory name
    system "cd ${workpath} && bunzip2 -dc ${distpath}/${atlasdist} | \
         gnutar --no-same-owner -xf -"
    system "mv ${workpath}/ATLAS ${workpath}/${name}-${version}"

    # extract lapack
    system "cd ${workpath} && gunzip -dc ${distpath}/${lapackdist} | \
         gnutar --no-same-owner -xf -"
}

# Set fortran compiler flags
set myf77     ${prefix}/bin/gfortran-mp-4.3
set myfflags  "-fomit-frame-pointer -O3"

pre-configure {
    # compile lapack
    system "cd ${workpath}/${lapackname}-${lapackversion} && \
            cp INSTALL/make.inc.gfortran make.inc"
    reinplace "s|gfortran|${myf77}|" \
           ${workpath}/${lapackname}-${lapackversion}/make.inc
    reinplace "s|OPTS     = -O2|OPTS = ${myfflags}|" \
           ${workpath}/${lapackname}-${lapackversion}/make.inc
    reinplace "s|PLAT = _LINUX|PLAT = _darwin|" \
           ${workpath}/${lapackname}-${lapackversion}/make.inc
    system "cd ${workpath}/${lapackname}-${lapackversion} && make lib"

    # create a build directory for atlas
    file mkdir ${workpath}/${name}-${version}/build
}

# we are configuring from the build directory
configure.dir   ${workpath}/${name}-${version}/build
configure.cmd   ../configure

# change the default compilers to those of gcc43 and make into shared library
configure.args  --with-netlib-lapack=${workpath}/${lapackname}-${lapackversion}/lapack_darwin.a \
                -C xc ${prefix}/bin/gcc-mp-4.3 \
                -C gc ${prefix}/bin/gcc-mp-4.3 \
                -C if ${myf77}\
                -F if '${myfflags}'\
                -C ic ${prefix}/bin/gcc-mp-4.3 \
                -C dm ${prefix}/bin/gcc-mp-4.3 \
                -C sm ${prefix}/bin/gcc-mp-4.3 \
                -C dk ${prefix}/bin/gcc-mp-4.3 \
                -C sk ${prefix}/bin/gcc-mp-4.3

post-configure {
    # recursively remove directories
    reinplace "s|rm -f|rm -rf|g" ${workpath}/${name}-${version}/build/Makefile
}

use_parallel_build  no
build.target build
build.dir    ${workpath}/${name}-${version}/build

destroot.dir ${build.dir}
destroot.destdir DESTDIR=${destroot}${prefix}
depends_lib  port:gcc43