Ticket #18173: Portfile.2

# $Id: Portfile 38455 2008-07-21 14:30:08Z jmr@macports.org $

PortSystem          1.0

categories          math
name                atlas
version             3.8.2

# additional versions
set lapackversion   3.2.1
set lapackname      lapack
set atlasdist       ${name}${version}.tar.bz2
set lapackdist      ${lapackname}.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           atlas3.8.2.tar.bz2 \
                    md5     dd888f5d066c1fafeaaf2ae6b37e0b85 \
                    sha1    2d1f2f789f57c9e7e8957f275b67c33176a36e0c \
                    rmd160  8160ccb3af7cd7365ba87c77d636fb68b24c62ae \
                    lapack.tgz \
                    md5     a3202a4f9e2f15ffd05d15dab4ac7857 \
                    sha1    c75223fdef3258c461370af5d2b889d580d7f38a \
                    rmd160  e8fabba2fdd944afbc02a83599cf45a0d721030d

# The following patch corrects an error in which Core 2 duos and Xeons
# are mistakenly identified as PIII cpu's
patchfiles          patch-CONFIG-src-backend-archinf_x86.c.diff
set make_patch      patch-build-Make.top.diff
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

# Set fortran compiler flags
set myf77           ${prefix}/bin/gfortran-mp-4.3

configure.args      -C xc ${prefix}/bin/gcc-mp-4.3 \
                    -C gc ${prefix}/bin/gcc-mp-4.3 \
                    -C if ${myf77} \
                    -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 \
                    -b 32 \
                    -Fa alg -fPIC 

        

# 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

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 -"
}



pre-configure {
    # Get some system specific variables for maximum optimization
    set cpufreq [expr {[exec sysctl -n hw.cpufrequency]/1000000}]
    ui_debug "Setting CPU Frequency for: ${cpufreq}"
    configure.args-append -D c -DPentiumCPS=${cpufreq}

    # first do a 'fack configure' of atlas so we get optimized lapack libraries
    # atlas docs: 3.1.2
    set atlas_path ${workpath}/${name}-${version}
    file mkdir ${workpath}/${name}-${version}/temp
    system "cd ${atlas_path}/temp && \
            ${configure.cmd} ${configure.args}"
    
    # Get the F77FLAGS 
    set atlas_f77    [join [lrange [split [exec grep "F77 = " $atlas_path/temp/Make.inc     ] =] 1 end] =]
    ui_debug "Found atlas F77: ${atlas_f77}"
    
    set atlas_fflags [join [lrange [split [exec grep "F77FLAGS = " $atlas_path/temp/Make.inc] =] 1 end] =]
    ui_debug "Found atlas F77FLAGS: ${atlas_fflags}"
    # Remove the old test configure directory
    system "rm -rf ${atlas_path}/temp"
    
    # compile lapack
    system "cd ${workpath}/${lapackname}-${lapackversion} && \
            cp INSTALL/make.inc.gfortran make.inc"
    reinplace "s|gfortran|${atlas_f77}|" \
           ${workpath}/${lapackname}-${lapackversion}/make.inc
    reinplace "s|OPTS     = -O2|OPTS = ${atlas_fflags}|" \
           ${workpath}/${lapackname}-${lapackversion}/make.inc
    
    reinplace "s|NOOPT    = -O0|NOOPT = -O2 -m32|" \
           ${workpath}/${lapackname}-${lapackversion}/make.inc

    reinplace "s|PLAT = _LINUX|PLAT = _darwin|" \
           ${workpath}/${lapackname}-${lapackversion}/make.inc
    
    reinplace "s|LOADOPTS =|LOADOPTS = ${atlas_fflags}|" \
           ${workpath}/${lapackname}-${lapackversion}/make.inc
    
    system "cd ${workpath}/${lapackname}-${lapackversion} && make lib"

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


    configure.args-append --with-netlib-lapack=${workpath}/${lapackname}-${lapackversion}/lapack_darwin.a 
}

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

    # patch ${name}-${version}/build/Make.top to install dynamic libs
    system "cd ${worksrcpath}/build/ && \
            patch -p0 < ${filespath}/${make_patch}"
}

pre-destroot {
  # We have to manually create the dylib shared libs as the default build does not do this
  set ld "ld -dynamic -arch i386 -dylib -single_module -dead_strip -x \
          -all_load -L. -L${prefix}/lib/gcc43 -ldylib1.o -dylib_install_name"
  
  system "cd ${workpath}/${name}-${version}/build/lib && \
          ${ld} libatlas.dylib libatlas.a -o libatlas.dylib -lSystem"
  
  system "cd ${workpath}/${name}-${version}/build/lib && \
          ${ld} libptcblas.dylib libptcblas.a -o libptcblas.dylib -latlas -lSystem"
  
  system "cd ${workpath}/${name}-${version}/build/lib && \
          ${ld} libptf77blas.dylib libptf77blas.a -o libptf77blas.dylib -lgfortran \
          -latlas -lSystem"

  system "cd ${workpath}/${name}-${version}/build/lib && \
          ${ld} liblapack.dylib liblapack.a -o liblapack.dylib -lptf77blas \
          -lgfortran -lptcblas -latlas -lgcc_s.1 -lSystem"

}

post-destroot {
  # we make soft links to the parallel built libs
  system "cd ${destroot}${prefix}/lib && \
          ln -sf ./libptcblas.dylib libcblas.dylib && \
          ln -sf ./libptf77blas.dylib libf77blas.dylib"
}