Arch Linux

scarypezsanta

Member

Registered: 2009-06-04

Posts: 25

8 bit pixels in octave

I installed octave from the repos but when I use the imread function I get the following:

warning: your version of GraphicsMagick limits images to 8 bits per pixel

I can't be restricted to 8 bits per pixel and from what I have read the default is 16, so I am not sure why the version of GraphicsMagick in the repos is compiled using 8. I tried to recompile both GraphicsMagick and Octave by slightly modifying the PKGBUILD I downloaded from the x86_64 extra repository. The only change is that I added --with-quantum-depth=32. PKGBUILDS shown below.

Both compile using makepkg and install via pacman but when octave compiles I get the following warning:

configure: WARNING: GraphicsMagick++ library not found.  The  function for reading image files will not be fully functional.

And when I fire up the installation of octave and attempt to use imread I get

error: imread: invalid image file: imread: image reading capabilities were disabled when Octave was compiled

Any ideas?

PKGBUILD for GraphicsMagick

# $Id$
# Maintainer: Ronald van Haren <ronald.archlinux.org>
# Maintainer: Gaetan Bisson <bisson@archlinux.org>
# Contributor: Jaroslav Lichtblau <dragonlord@aur.archlinux.org>
# Contributor: Anton Leontiev <bunder@t-25.ru>

pkgname=graphicsmagick
pkgver=1.3.13
pkgrel=1
pkgdesc='Image processing system'
url='http://www.graphicsmagick.org/'
arch=('i686' 'x86_64')
license=('MIT')
makedepends=('perl')
depends=('bzip2' 'freetype2' 'ghostscript' 'jasper' 'lcms2' 'xz'
         'libtiff' 'libwmf' 'libsm' 'libxml2' 'libltdl')
options=('!libtool')
source=("http://downloads.sourceforge.net/project/${pkgname}/${pkgname}/${pkgver}/GraphicsMagick-${pkgver}.tar.xz")
sha1sums=('b85b21785bb072fd795f7fc6ac902cffae4e96e6')

build() {
  cd "${srcdir}/GraphicsMagick-$pkgver"

  ./configure \
    --prefix=/usr \
    --with-perl \
    --enable-shared \
    --disable-static \
    --with-gs-font-dir=/usr/share/fonts/Type1 \
    --with-quantum-depth=32 \

  make
}

package() {
  cd "${srcdir}/GraphicsMagick-$pkgver"

  make DESTDIR="${pkgdir}" install

  # Install MIT license
  install -Dm644 "Copyright.txt" "${pkgdir}/usr/share/licenses/$pkgname/Copyright.txt"

  # Install perl bindings
  # The patching was introduced in order to build perl module without installing package itself and
  # not to introduce unnecessary path into LD_RUN_PATH
  cd PerlMagick
  sed -i -e "s:'LDDLFLAGS'  => \"\(.*\)\":'LDDLFLAGS'  => \"-L${pkgdir}/usr/lib \1\":" Makefile.PL
  perl Makefile.PL INSTALLDIRS=vendor PREFIX=/usr DESTDIR="${pkgdir}"
  sed -i -e "s/LDLOADLIBS =/LDLOADLIBS = -lGraphicsMagick/" Makefile
  make
  make install

  # Remove perllocal.pod and .packlist
  rm -rf "${pkgdir}/usr/lib/perl5/core_perl"
  rm "${pkgdir}/usr/lib/perl5/vendor_perl/auto/Graphics/Magick/.packlist"
}

PKGBUILD for Octave

# $Id$
# Maintainer: Ronald van Haren <ronald.archlinux.org>
# Contributor : shining <shiningxc.at.gmail.com>
# Contributor : cyberdune <cyberdune@gmail.com>

pkgname=octave
pkgver=3.4.3
pkgrel=1
pkgdesc="A high-level language, primarily intended for numerical computations."
arch=('i686' 'x86_64')
url="http://www.octave.org"
license=('GPL')
depends=('fftw' 'pcre' 'curl' 'lapack' 'libx11' 'graphicsmagick' 'glpk' 'hdf5' 'gcc-libs' 'qhull')
makedepends=('texinfo' 'graphicsmagick' 'gcc-fortran' 'umfpack' 'texlive-core' 'fltk')
optdepends=('texinfo: for help-support in octave'
            'gnuplot: alternative plotting'
      'umfpack: LU decomposition of some large sparse matrices'
      'fltk: alternative plotting')
source=("ftp://ftp.gnu.org/gnu/octave/octave-$pkgver.tar.bz2")
options=('!emptydirs')
install=octave.install
sha1sums=('fe622c28a38f8730c59e46211bc7b18e7f51a679')
  
build() {
  cd ${srcdir}/${pkgname}-${pkgver}

  # http://www.nabble.com/Random-rounding-errors-td16010966.html
  FFLAGS="-O -ffloat-store" \

  ./configure --prefix=/usr --libexecdir=/usr/lib \
  --enable-shared --disable-static --with-quantum-depth=32 \
  --with-magick=GraphicsMagick

  LANG=C make
}

package(){
  cd ${srcdir}/${pkgname}-${pkgver}

  make DESTDIR="${pkgdir}" install

  # add octave library path to ld.so.conf.d
  install -d ${pkgdir}/etc/ld.so.conf.d
  echo "/usr/lib/${pkgname}-${pkgver}" > ${pkgdir}/etc/ld.so.conf.d/${pkgname}.conf
}