source $stdenv/setup

patchPhase=patchPhase
patchPhase() {
  for i in $patches; do
    header "applying patch $i" 3
    patch -p0 < $i || fail
    stopNest
  done

 configureImakefiles "s:__PREFIX_PNG:$libpng:"
  configureImakefiles "s:__PREFIX:$out:"
}

configureImakefiles() {
  local sedcmd=$1

  sed "${sedcmd}" fig2dev/Imakefile > tmpsed
  cp tmpsed fig2dev/Imakefile

  sed "${sedcmd}" fig2dev/dev/Imakefile > tmpsed
  cp tmpsed fig2dev/dev/Imakefile

  sed "${sedcmd}" transfig/Imakefile > tmpsed
  cp tmpsed transfig/Imakefile
}

buildPhase=buildPhase
buildPhase() {
    xmkmf
    make Makefiles
    make
}

preInstall=preInstall
preInstall() {
  ensureDir $out
  ensureDir $out/lib
}

genericBuild