#!/bin/sh

# postflight script for R 

# create convenience links to R and Rscript
cd /usr/bin
rm -f R Rscript
ln -s /Library/Frameworks/R.framework/Resources/bin/R .
ln -s /Library/Frameworks/R.framework/Resources/bin/Rscript .

# update font cache (if this R includes fontconfig)
if [ -e /Library/Frameworks/R.framework/Resources/bin/fc-cache ]; then
    /Library/Frameworks/R.framework/Resources/bin/fc-cache
fi

# make sure the framework is admin-writable
chown -R root:admin /Library/Frameworks/R.framework
chmod -R g+w /Library/Frameworks/R.framework

# remove left-overs from previous versions (beta/RC/...)
if [ -e /Library/Frameworks/R.framework/Resources/etc/Makeconf ]; then
  rm -f /Library/Frameworks/R.framework/Resources/etc/Makeconf
fi

# some jobs needed specifically on Mac OS X 10.6 (Snow Leopard) and 10.7 (Lion)
if uname -r | grep ^1[01] >/dev/null; then
  # since 10.6 we have to remove ppc* since Apple doesn't ship the libraries anymore
  # this makes sure that package compilation won't try to use ppc
  rm -rf `find /Library/Frameworks/R.framework/Resources/ -name ppc`

  # change default architecture to 64-bit Intel if supported by the CPU and add R64/R32
  if /usr/sbin/sysctl hw.cpu64bit_capable 2>/dev/null | grep '1$' >/dev/null; then
      sed 's,^: ${R_ARCH=.*,: ${R_ARCH=/i386},' /Library/Frameworks/R.framework/Resources/bin/R > /Library/Frameworks/R.framework/Resources/bin/R32
      sed 's,^: ${R_ARCH=.*,: ${R_ARCH=/x86_64},' /Library/Frameworks/R.framework/Resources/bin/R > /Library/Frameworks/R.framework/Resources/bin/R64 && \
      ln -sfn R64 /Library/Frameworks/R.framework/Resources/bin/R && ln -sfn /Library/Frameworks/R.framework/Resources/bin/R64 /usr/bin/R64
      chmod 0775 /Library/Frameworks/R.framework/Resources/bin/R64 /Library/Frameworks/R.framework/Resources/bin/R32
      ln -sfn /Library/Frameworks/R.framework/Resources/bin/R32 /usr/bin/R32
  fi

  # we ship with R-BLAS due to bugs in vecLib, but so far it seems Lion has fixed those so we can go back to vecLib
  if uname -r | grep ^11 >/dev/null; then
      ln -sfn libRblas.vecLib.dylib /Library/Frameworks/R.framework/Resources/lib/libRblas.dylib
  fi

  # check gfortran - if it's our previously installed Xcode 3.1.x build, remove it since it breaks on SL
  if /usr/bin/gfortran -v 2>/dev/null | grep '/Volumes/Data/Builds/apple/gcc_42-55'; then
      rm -f /usr/bin/gfortran
  fi
  if /usr/bin/gfortran-4.2 -v 2>/dev/null | grep '/Volumes/Data/Builds/apple/gcc_42-55'; then
      rm -f /usr/bin/gfortran-4.2
      for dir in /usr/lib/gcc/i686-apple-darwin9 /usr/lib/gcc/powerpc-apple-darwin9 /usr/libexec/gcc/i686-apple-darwin9 /usr/libexec/gcc/powerpc-apple-darwin9; do
	  rm -rf $dir/4.2.1
	  rmdir $dir 2>/dev/null
      done
  fi
else # on Leopard we keep the old defaults but create R64 based on the current machine
  if /usr/sbin/sysctl hw.cpu64bit_capable 2>/dev/null | grep '1$' >/dev/null; then
      if [ `arch` = ppc ]; then
	  sed 's,^: ${R_ARCH=.*,: ${R_ARCH=/ppc64},' /Library/Frameworks/R.framework/Resources/bin/R > /Library/Frameworks/R.framework/Resources/bin/R64 && \
	  ln -sfn /Library/Frameworks/R.framework/Resources/bin/R64 /usr/bin/R64
      else
	  sed 's,^: ${R_ARCH=.*,: ${R_ARCH=/x86_64},' /Library/Frameworks/R.framework/Resources/bin/R > /Library/Frameworks/R.framework/Resources/bin/R64 && \
	  ln -sfn /Library/Frameworks/R.framework/Resources/bin/R64 /usr/bin/R64
      fi
      chmod 0775 /Library/Frameworks/R.framework/Resources/bin/R64
  fi
fi