patchMATLAB.sh

#!/bin/sh
#
# Based on https://github.com/jdreaver/NixOS-matlab/blob/master/builder.sh
#

PATCH_MATLAB_LOCK_FILE=patchMatlab.lock

if [ ! -f "$PATCH_MATLAB_LOCK_FILE" ]; then
  PATCH_FILES=(
    $MATLAB_PATH/bin/glnxa64/MATLAB
    $MATLAB_PATH/bin/glnxa64/matlab_helper
    $MATLAB_PATH/bin/glnxa64/mbuildHelp
    $MATLAB_PATH/bin/glnxa64/mex
    $MATLAB_PATH/bin/glnxa64/need_softwareopengl
    $MATLAB_PATH/sys/java/jre/glnxa64/jre/bin/java
  )

  echo "Patching java... ($MATLAB_PATH/sys/java/jre/glnxa64/jre/bin/java)"
  chmod u+rw "$MATLAB_PATH/sys/java/jre/glnxa64/jre/bin/java"
  patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
    --set-rpath "$libPath:$(patchelf --print-rpath $MATLAB_PATH/sys/java/jre/glnxa64/jre/bin/java)"\
    --force-rpath "$MATLAB_PATH/sys/java/jre/glnxa64/jre/bin/java"

  echo "Patching MATLAB executables..."
  for f in ${PATCH_FILES[*]}; do
    chmod u+rw $f
    patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
      --set-rpath "$libPath:$(patchelf --print-rpath $f)"\
      --force-rpath $f
  done

  SO_FILES=$(ls -1 $MATLAB_PATH/bin/glnxa64/*.so)
  for f in ${SO_FILES[*]}; do
    chmod u+rw $f
    patchelf --set-rpath "$libPath:$(patchelf --print-rpath $f)"\
      --force-rpath $f
  done

  # Set the correct path to gcc
  CC_FILES=(
      $MATLAB_PATH/bin/mbuildopts.sh
      $MATLAB_PATH/bin/mexopts.sh
  )

  for f in ${CC_FILES[*]}; do
    chmod u+rw $f
    substituteInPlace $f\
    --replace "CC='gcc'" "CC='${matlabGcc}/bin/gcc'"
  done

  touch "$PATCH_MATLAB_LOCK_FILE"
fi