Attempting to reduce compiler warnings for gcc-4.2 (which I don't

have, but Darren Dale has reported some new warnings).

svn path=/trunk/matplotlib/; revision=3668

Author: mdboom

src/_ttconv.cpp

@@ -83,10 +83,10 @@ convert_ttf_to_ps(PyObject* self, PyObject* args, PyObject* kwds) {
   int			fonttype;
   std::vector<int>	glyph_ids;
 
-  static char *kwlist[] = { "filename", "output", "fonttype", "glyph_ids", NULL };
+  static const char *kwlist[] = { "filename", "output", "fonttype", "glyph_ids", NULL };
   if (! PyArg_ParseTupleAndKeywords
       (args, kwds, 
-       "sO&i|O&:convert_ttf_to_ps", kwlist,
+       "sO&i|O&:convert_ttf_to_ps", (char **)kwlist,
        &filename,
        fileobject_to_PythonFileWriter,
        &output,
@@ -140,10 +140,10 @@ py_get_pdf_charprocs(PyObject* self, PyObject* args, PyObject* kwds) {
   std::vector<int>	glyph_ids;
   PyObject*             result;
 
-  static char *kwlist[] = { "filename", "glyph_ids", NULL };
+  static const char *kwlist[] = { "filename", "glyph_ids", NULL };
   if (! PyArg_ParseTupleAndKeywords
       (args, kwds, 
-       "s|O&:convert_ttf_to_ps", kwlist,
+       "s|O&:convert_ttf_to_ps", (char **)kwlist,
        &filename,
        pyiterable_to_vector_int,
        &glyph_ids))

src/ft2font.cpp

@@ -1370,8 +1370,8 @@ FT2Font::get_sfnt_table(const Py::Tuple & args) {
   std::string tagname = Py::String(args[0]);
 
   int tag;
-  char *tags[] = {"head", "maxp", "OS/2", "hhea",
-		  "vhea", "post", "pclt",  NULL};
+  static const char *tags[] = {"head", "maxp", "OS/2", "hhea",
+			       "vhea", "post", "pclt",  NULL};
 
   for (tag=0; tags[tag] != NULL; tag++)
     if (strcmp(tagname.c_str(), tags[tag]) == 0)

ttconv/pprdrv_tt.cpp

@@ -107,7 +107,7 @@ Fixed getFixed(BYTE *s)
 ** is always 4 characters, though the last characters may be 
 ** padding spaces.
 -----------------------------------------------------------------------*/
-BYTE *GetTable(struct TTFONT *font, char *name)
+BYTE *GetTable(struct TTFONT *font, const char *name)
     {
     BYTE *ptr;
     ULONG x;
@@ -654,7 +654,7 @@ void sfnts_glyf_table(TTStreamWriter& stream, struct TTFONT *font, ULONG oldoffs
 */
 void ttfont_sfnts(TTStreamWriter& stream, struct TTFONT *font)
     {
-    char *table_names[]=	/* The names of all tables */
+    const char *table_names[]=	/* The names of all tables */
     	{			/* which it is worth while */
     	"cvt ",			/* to include in a Type 42 */
     	"fpgm",			/* PostScript font. */
@@ -828,7 +828,7 @@ void ttfont_sfnts(TTStreamWriter& stream, struct TTFONT *font)
 ** this array will instead convert PostScript character names
 ** to executable proceedures.
 --------------------------------------------------------------*/
-char *Apple_CharStrings[]={ 
+const char *Apple_CharStrings[]={ 
 ".notdef",".null","nonmarkingreturn","space","exclam","quotedbl","numbersign", 
 "dollar","percent","ampersand","quotesingle","parenleft","parenright", 
 "asterisk","plus", "comma","hyphen","period","slash","zero","one","two",
@@ -871,7 +871,7 @@ char *Apple_CharStrings[]={
 ** This routine is called by the one below.
 ** It is also called from pprdrv_tt2.c
 */
-char *ttfont_CharStrings_getname(struct TTFONT *font, int charindex)
+const char *ttfont_CharStrings_getname(struct TTFONT *font, int charindex)
     {
     int GlyphIndex;
     static char temp[80];
@@ -1227,7 +1227,7 @@ void get_pdf_charprocs(const char *filename, std::vector<int>& glyph_ids, TTDict
 	 i != glyph_ids.end(); ++i) {
 	StringStreamWriter writer;
 	tt_type3_charproc(writer, &font, *i);
-	char* name = ttfont_CharStrings_getname(&font, *i);
+	const char* name = ttfont_CharStrings_getname(&font, *i);
 	dict.add_pair(name, writer.str().c_str());
     }
 }

ttconv/truetype.h

@@ -51,13 +51,13 @@ struct TTFONT
     font_type_enum  target_type;	/* 42 or 3 for PS, or -3 for PDF */
 
     ULONG numTables;			/* number of tables present */
-    char *PostName;			/* Font's PostScript name */
-    char *FullName;			/* Font's full name */
-    char *FamilyName;			/* Font's family name */
-    char *Style;			/* Font's style string */
-    char *Copyright;			/* Font's copyright string */
-    char *Version;			/* Font's version string */
-    char *Trademark;			/* Font's trademark string */
+    const char *PostName;		/* Font's PostScript name */
+    const char *FullName;		/* Font's full name */
+    const char *FamilyName;		/* Font's family name */
+    const char *Style;			/* Font's style string */
+    const char *Copyright;		/* Font's copyright string */
+    const char *Version;		/* Font's version string */
+    const char *Trademark;		/* Font's trademark string */
     int llx,lly,urx,ury;		/* bounding box */
 
     Fixed TTVersion;			/* Truetype version number from offset table */
@@ -98,7 +98,7 @@ Fixed getFixed(BYTE *p);
 
 /* This is the one routine in pprdrv_tt.c that is */
 /* called from pprdrv_tt.c. */
-char *ttfont_CharStrings_getname(struct TTFONT *font, int charindex);
+const char *ttfont_CharStrings_getname(struct TTFONT *font, int charindex);
 
 void tt_type3_charproc(TTStreamWriter& stream, struct TTFONT *font, int charindex);