More const policeing, removed unused variable

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4901 a1c6a512-1295-4272-9138-f99709370657

apps/settings.c

@@ -67,7 +67,6 @@
 void dac_line_in(bool enable);
 #endif
 struct user_settings global_settings;
-char rockboxdir[] = ROCKBOX_DIR;       /* config/font/data file directory */
 char rec_base_directory[] = REC_BASE_DIR;
 
 
@@ -152,7 +151,7 @@ static const char graphic_numeric[] = "graphic,numeric";
 
 /* the part of the settings which ends up in the RTC RAM, where available 
    (those we either need early, save frequently, or without spinup) */
-static struct bit_entry rtc_bits[] = 
+static const struct bit_entry rtc_bits[] =
 {
     /* placeholder, containing the size information */
     {9, 0, 0, 0, NULL, NULL }, /* 9 bit to tell how far this is populated */
@@ -231,7 +230,7 @@ static struct bit_entry rtc_bits[] =
 
 
 /* the part of the settings which ends up in HD sector only */
-static struct bit_entry hd_bits[] = 
+static const struct bit_entry hd_bits[] =
 {
     /* This table starts after the 44 RTC bytes = 352 bits. */
     /* Here we need 11 bits to tell how far this is populated. */

apps/settings.h

@@ -262,7 +262,6 @@ unsigned int rec_timesplit_seconds(void);
 extern struct user_settings global_settings;
 /* name of directory where configuration, fonts and other data
  * files are stored */
-extern char rockboxdir[];
 extern long lasttime;
 
 /* Recording base directory */