-        os.path.join(tmpdir, 'font.ttf')
-    ]
-    env = {"PERL_USE_UNSAFE_INC": "1"}
-    if verbose:
-        print("Running font-optimizer")
-        subprocess.check_call(optimizer_call, env=env)
-    else:
-        dev_null = open(os.devnull, 'w')
-        subprocess.check_call(optimizer_call, stdout=dev_null,
-                              stderr=dev_null, env=env)
+       '--text=' + ''.join(chars),
+       '--output-file=' + os.path.join(tmpdir, 'font.ttf')
+    ])