# Maintainer: Luis Henrique <lmello.009@gmail.com>
# Former Maintainer: R S Ananda Murthy <rsamurti@gmail.com>

# Mandatory
pkgname=arpack
pkgver=2.1
pkgver_major=2
pkgrel=1lm
source=("http://www.caam.rice.edu/software/ARPACK/SRC/arpack96.tar.gz" "http://www.caam.rice.edu/software/ARPACK/SRC/patch.tar.gz" "arpack96-bugfix.patch")
# Optional
docs=("README" "debug.doc" "ex-complex.doc" "ex-nonsym.doc" "ex-sym.doc" "stat.doc")
url="http://www.caam.rice.edu/software/ARPACK/"
 
slackdesc=\
(
#|-----handy-ruler------------------------------------------------------|
"arpack (Arnoldi Package)"
"ARPACK is a collection of Fortran77 subroutines designed to solve"
"large scale eigenvalue problems."
)

build() {
	    # Apply all bugfix patches
	    patch -p0 < arpack96-bugfix.patch
        
        cd $startdir/src/ARPACK
        mkdir static shared
        # Build shared library
        cd shared
        for dir in ../SRC ../UTIL; do
          make -f $dir/Makefile VPATH=$dir srcdir=$dir \
               FC=gfortran FFLAGS="-std=legacy $SLKCFLAGS -fPIC" \
               single double complex complex16
        done
        gcc -shared -lblas -llapack -Wl,-soname,libarpack.so.$pkgver_major -o libarpack.so.$pkgver *.o
        cd ..
        # Build static library
        cd static
        for dir in ../SRC ../UTIL; do
          make -f $dir/Makefile VPATH=$dir srcdir=$dir \
               FC=gfortran FFLAGS="-std=legacy $SLKCFLAGS" \
               single double complex complex16
        done
        ar rv libarpack.a *.o
        ranlib libarpack.a
        cd ..
        # Manual install
        mkdir -p $startdir/pkg/usr/lib${LIBDIRSUFFIX}
        install -p -m644 static/libarpack.a $startdir/pkg/usr/lib${LIBDIRSUFFIX}
        install -p -m755 shared/libarpack.so.$pkgver $startdir/pkg/usr/lib${LIBDIRSUFFIX}
        # Make symbolic links
        ( 
          cd $startdir/pkg/usr/lib${LIBDIRSUFFIX}
          ln -s libarpack.so.$pkgver libarpack.so.$pkgver_major
          ln -s libarpack.so.$pkgver_major libarpack.so
        )
}