Fix compiler warnings, operating system dependancies, and non-portable code.

src/gdisp/fonts.c

@@ -50,7 +50,6 @@ static bool_t matchfont(const char *pattern, const char *name) {
 
 font_t gdispOpenFont(const char *name) {
 	const struct mf_font_list_s *fp;
-	int i;
 	
 	fp = mf_get_font_list();
 	

src/gdisp/mcufont/mf_config.h

@@ -12,6 +12,9 @@
 
 #include <gfx.h>
 
+/* Prevent double definitions of standard int types */
+#define MF_NO_STDINT_H
+
 /* Mapping from uGFX settings to mcufont settings */
 #if GDISP_NEED_UTF8
 #define MF_ENCODING MF_ENCODING_UTF8

src/gdisp/mcufont/mf_encoding.c

@@ -73,4 +73,14 @@ void mf_rewind(mf_str *str)
         (*str)--;
 }
 
+#else
+
+mf_char mf_getchar(mf_str *str) {
+	return *(*str)++;
+}
+
+void mf_rewind(mf_str *str) {
+	(*str)--;
+}
+
 #endif

src/gdisp/mcufont/mf_encoding.h

@@ -13,7 +13,9 @@
 #define _MF_ENCODING_H_
 
 #include "mf_config.h"
+#ifndef MF_NO_STDINT_H
 #include <stdint.h>
+#endif
 
 /* Type used to represent characters internally. */
 #if MF_ENCODING == MF_ENCODING_ASCII
@@ -42,19 +44,11 @@ typedef const wchar_t * mf_str;
  * 
  * Returns: The next character, as unicode codepoint.
  */
-#if MF_ENCODING == MF_ENCODING_UTF8
 MF_EXTERN mf_char mf_getchar(mf_str *str);
-#else
-static mf_char mf_getchar(mf_str *str) { return *(*str)++; }
-#endif
 
 /* Moves back the pointer to the beginning of the previous character.
  * Be careful not to go beyond the start of the string.
  */
-#if MF_ENCODING == MF_ENCODING_UTF8
 MF_EXTERN void mf_rewind(mf_str *str);
-#else
-static void mf_rewind(mf_str *str) { (*str)--; }
-#endif
 
 #endif

src/gdisp/mcufont/mf_font.h

@@ -120,6 +120,6 @@ MF_EXTERN uint8_t mf_character_width(const struct mf_font_s *font,
 MF_EXTERN const struct mf_font_s *mf_find_font(const char *name);
 
 /* Get the list of included fonts */
-MF_EXTERN const struct mf_font_list_s *mf_get_font_list();
+MF_EXTERN const struct mf_font_list_s *mf_get_font_list(void);
 
-#endif
+#endif

src/gdisp/mcufont/mf_justify.c

@@ -82,7 +82,7 @@ static uint16_t strip_spaces(mf_str text, uint16_t count, mf_char *last_char)
     {
         i++;
         tmp = mf_getchar(&text);
-        if (tmp != ' ' && tmp != 0xA0 && tmp != '\n' &&
+        if (tmp != ' ' && tmp != (mf_char)0xA0 && tmp != '\n' &&
             tmp != '\r' && tmp != '\t')
         {
             result = i;
@@ -234,6 +234,7 @@ void mf_render_justified(const struct mf_font_s *font,
                          mf_character_callback_t callback,
                          void *state)
 {
+	(void) width;
     mf_render_aligned(font, x0, y0, MF_ALIGN_LEFT, text, count, callback, state);
 }
 

src/gdisp/mcufont/mf_kerning.h

@@ -28,9 +28,7 @@
 MF_EXTERN int8_t mf_compute_kerning(const struct mf_font_s *font,
                                     mf_char c1, mf_char c2);
 #else
-static int8_t mf_compute_kerning(const struct mf_font_s *font,
-                                 mf_char c1, mf_char c2)
-{ return 0; }
+#define mf_compute_kerning(font, c1, c2)		0
 #endif
 
-#endif
+#endif

src/gdisp/mcufont/mf_rlefont.c

@@ -160,6 +160,7 @@ static void write_bin_codeword(const struct mf_rlefont_s *font,
     uint8_t bitcount = fillentry_bitcount(code);
     uint8_t byte = code - DICT_START7BIT;
     uint8_t runlen = 0;
+    (void) font;
     
     while (bitcount--)
     {

src/gdisp/mcufont/mf_wordwrap.c

@@ -227,7 +227,6 @@ void mf_wordwrap(const struct mf_font_s *font, int16_t width,
 void mf_wordwrap(const struct mf_font_s *font, int16_t width,
                  mf_str text, mf_line_callback_t callback, void *state)
 {
-    mf_str orig = text;
     mf_str linestart;
     
     /* Current line width and character count */