[OTS] Make standalone tools compile on Mac

src/cff_type2_charstring.cc

Index: src/cff_type2_charstring.cc
===================================================================
--- src/cff_type2_charstring.cc	(revision 98)
+++ src/cff_type2_charstring.cc	(working copy)
@@ -38,6 +38,8 @@
                             bool *out_found_width,
                             size_t *in_out_num_stems);
 
+// TODO(ksakamoto): Remove the below function (looks like unused function).

[Yusuke Sato, 2013/04/03 07:40:32]

#if 0 does not look good. Please just remove the function if you're confident
that you won't use the debug function. Or, you could use -Wno-unused-function.

[Kunihiko Sakamoto, 2013/04/03 08:18:04]

Just removed it.

+#if 0
 // Converts |op| to a string and returns it.
 const char *Type2CharStringOperatorToString(ots::Type2CharStringOperator op) {
   switch (op) {
@@ -139,6 +141,7 @@
 
   return "UNKNOWN";
 }
+#endif
 
 // Read one or more bytes from the |char_string| buffer and stores the number
 // read on |out_number|. If the number read is an operator (ex 'vstem'), sets