(OSX) Silence warnings

cheevos/cheevos.c

@@ -2796,7 +2796,6 @@ static int cheevos_iterate(coro_t* coro)
          {
             buffer   = (uint8_t*)DATA + LEN;
             to_read  = 4096;
-            num_read = 0;
 
             if (to_read > COUNT)
                to_read = COUNT;

libretro-common/formats/bmp/rbmp.c

@@ -293,11 +293,10 @@ static unsigned char *rbmp__bmp_load(rbmp__context *s, unsigned *x, unsigned *y,
          }
          if (bpp == 16 || bpp == 32)
          {
-            mr = mg = mb = 0;
-
             switch (compress)
             {
                case 0:
+#if 0
                   if (bpp == 32)
                   {
                      mr = 0xffu << 16;
@@ -311,6 +310,7 @@ static unsigned char *rbmp__bmp_load(rbmp__context *s, unsigned *x, unsigned *y,
                      mg = 31u <<  5;
                      mb = 31u <<  0;
                   }
+#endif
                   break;
                case 3:
                   mr = rbmp__get32le(s);
@@ -323,6 +323,9 @@ static unsigned char *rbmp__bmp_load(rbmp__context *s, unsigned *x, unsigned *y,
                      return 0;
                   break;
                default:
+#if 0
+                  mr = mg = mb = 0;
+#endif
                   break;
             }
 

libretro-common/formats/png/rpng_encode.c

@@ -311,7 +311,6 @@ static bool rpng_save_image(const char *path,
          {
             filter = 4;
             chosen_filtered = paeth_filtered;
-            min_sad = paeth_score;
          }
 
          *encode_target++ = filter;

menu/cbs/menu_cbs_ok.c

@@ -3477,7 +3477,6 @@ finish:
       {
          char s[PATH_MAX_LENGTH];
          int i                                = 0;
-         int j                                = 0;
          int k                                = 0;
          file_list_t *file_list               = menu_entries_get_selection_buf_ptr(0);