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# $Id: PKGBUILD 57440 2011-10-27 20:16:15Z lcarlier $
# Maintainer: Hector <hsearaDOTatDOTgmailDOTcom>
# Contributor: Eduardo Martins Lopes "duca" <edumlopes@gmail.com>
# Contributor: Abhishek Dasgupta <abhidg@gmail.com>
# Contributor: Ricardo <rikardo.horo@gmail.com>

pkgname=gromacs
pkgver=5.0.5
pkgrel=1
pkgdesc='A versatile package to perform molecular dynamics, i.e. simulate the Newtonian equations of motion for systems with hundreds to millions of particles.'
url='http://www.gromacs.org/'
license=("GPL")
arch=('i686' 'x86_64')
depends=('fftw' 'lesstif' 'perl' 'libxml2' 'libsm' 'libx11')
makedepends=('cmake')
options=('!libtool')
source=(ftp://ftp.gromacs.org/pub/gromacs/${pkgname}-${pkgver}.tar.gz)
sha1sums=('990a93d62964eb80d310e713790795a36681eacf')

build() {
  mkdir -p ${srcdir}/{single,double}

  ###### CMAKE OPTIONS DISABLE BY DEFAULT ###########
  # If you are using a haswell CPU, you will have   #
  # problems compiling with AVX2 support unless you #
  # modify march=native in the /etc/makepkg.conf:   #
  # https://wiki.archlinux.org/index.php/Makepkg#Architecture.2C_compile_flagsAdd #
  ###################################################
  msg2 "Building the double precision files"
  cd ${srcdir}/double	
  cmake ../${pkgname}-${pkgver}/ \
        -DCMAKE_INSTALL_PREFIX=/usr \
        -DBUILD_SHARED_LIBS=ON \
        -DGMX_X11=ON \
        -DGMX_OPENMP=ON \
        -DCMAKE_INSTALL_LIBDIR=lib \
        -DGMX_DOUBLE=ON \
        -DGMX_SIMD=AVX_256 \
        -DREGRESSIONTEST_DOWNLOAD=ON \
        -DGMX_LIBS_SUFFIX=_d
  make

  msg2 "Building the single precision files"
  cd ${srcdir}/single
  cmake ../${pkgname}-${pkgver}/ \
        -DCMAKE_INSTALL_PREFIX=/usr/ \
        -DBUILD_SHARED_LIBS=ON \
        -DGMX_X11=ON \
        -DGMX_OPENMP=ON \
        -DGMX_SIMD=AVX_256 \
        -DREGRESSIONTEST_DOWNLOAD=ON \
        -DCMAKE_INSTALL_LIBDIR=lib
  make
}

check () {
  ########################################
  #   Currently tests fail. This is the  #
  #   reason they are commented out.     #
  #   Still no problems detected so far. #
  ######################################## 
  msg2 "Testing double precision compilation"
  cd ${srcdir}/double
#  make test
  msg2 "Testing single precision compilation"
  cd ${srcdir}/single
#  make test
}

package() {

  msg2 "Making the single precision executables"
  cd ${srcdir}/single
  make  DESTDIR=${pkgdir} install

  # Cleaning up, kept the csh completion at default location
  msg2 "Making the double precision executables"
  cd ${srcdir}/double
  make DESTDIR=${pkgdir} install

  # installing completions in correct location and environment setup script
  msg2 "Installing completion and environment setup script"
  mkdir -p ${pkgdir}/etc/profile.d/
  mkdir -p ${pkgdir}/usr/share/bash-completion/completions
  install -D -m755 ${srcdir}/${pkgname}-${pkgver}/src/programs/completion/gmx-completion.bash "${pkgdir}/usr/share/bash-completion/completions/gromacs"
  mv ${pkgdir}/usr/bin/GMXRC.* ${pkgdir}/etc/profile.d/
  sed "s:/usr/bin:/etc/profile.d:" ${pkgdir}/usr/bin/GMXRC > ${pkgdir}/etc/profile.d/GMXRC
  chmod 755 ${pkgdir}/etc/profile.d/GMXRC
  rm -f ${pkgdir}/usr/bin/completion.*
  rm -f ${pkgdir}/usr/bin/GMXRC
}