anchor.diff:    installPhase = ''
       for f in Products/Release/*; do
         if [ -f $f ]; then
  -        install -D $file $out/bin/$(basename $f)
  +        install -D $f $out/bin/$(basename $f)
         fi
       done
   
  
positive.code:   #  - os/base_private.h
    #  - _simple.h
    # We disable it here for now. TODO: build pkill inside adv_cmds
  
    # We also disable locale here because of some issues with a missing
    # "lstdc++".
    patchPhase = ''
      substituteInPlace adv_cmds.xcodeproj/project.pbxproj \
        --replace "FD201DC214369B4200906237 /* pkill.c in Sources */," "" \
        --replace "FDF278D60FC6204E00D7A3C6 /* locale.cc in Sources */," "" \
        --replace '/usr/lib/libtermcap.dylib' 'libncurses.dylib'
    '';
  
    buildPhase = ''
      targets=$(xcodebuild -list \
                  | awk '/Targets:/{p=1;print;next} p&&/^\s*$/{p=0};p' \
                  | tail -n +2 | sed 's/^[ \t]*//' \
                  | grep -v -e Desktop -e Embedded -e mklocale -e colldef)
  
      for i in $targets; do
        xcodebuild SYMROOT=$PWD/Products OBJROOT=$PWD/Intermediates -target $i
  
negative.code: 
  appleDerivation {
    # We can't just run the root build, because https://github.com/facebook/xcbuild/issues/264
  
    patchPhase = ''
      substituteInPlace adv_cmds.xcodeproj/project.pbxproj \
        --replace '/usr/lib/libtermcap.dylib' 'libncurses.dylib'
    '';
  
    # pkill requires special private headers that are unavailable in
    # NixPkgs. These ones are needed:
  