foreach (sort keys %ENV) { 
  print "$_  =  $ENV{$_}\n"; 
}

##</code><code>##

      cmd LC_VERSION_MIN_MACOSX
  cmdsize 16
  version 10.13
      sdk 10.13

##</code><code>##

LDDLFLAGS =  -mmacosx-version-min=10.13 -bundle -undefined dynamic_lookup -L/usr/local/lib -fstack-protector-strong
LDFLAGS =  -mmacosx-version-min=10.13 -fstack-protector-strong -L/usr/local/lib