Mark some more variables/parameters constant

Fixes a couple of warnings seen with GCC 4.7.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

4 files changed, 7 insertions, 7 deletions

diff --git a/src/args.c b/src/args.c
index ad27235..a846095 100644
--- a/src/args.c
+++ b/src/args.c
@@ -204,7 +204,7 @@ todo_arg (int priority, const char *format, regex_t *regex)
 {
   llist_item_t *i;
   int title = 1;
-  char *titlestr;
+  const char *titlestr;
   const char *all_todos_title = _("to do:\n");
   const char *completed_title = _("completed tasks:\n");
 
diff --git a/src/calcurse.h b/src/calcurse.h
index d77c827..238d8b3 100644
--- a/src/calcurse.h
+++ b/src/calcurse.h
@@ -708,8 +708,8 @@ void             io_export_data (enum export_type);
 void             io_export_bar (void);
 void             io_import_data (enum import_type, char *);
 struct io_file  *io_log_init (void);
-void             io_log_print (struct io_file *, int, char *);
-void             io_log_display (struct io_file *, char *, char *);
+void             io_log_print (struct io_file *, int, const char *);
+void             io_log_display (struct io_file *, const char *, char *);
 void             io_log_free (struct io_file *);
 void             io_start_psave_thread (void);
 void             io_stop_psave_thread (void);
@@ -894,7 +894,7 @@ void         exit_calcurse (int) __attribute__((__noreturn__));
 void         free_user_data (void);
 void         fatalbox (const char *);
 void         warnbox (const char *);
-void         status_mesg (char *, char *);
+void         status_mesg (const char *, const char *);
 void         erase_window_part (WINDOW *, int, int, int, int);
 WINDOW      *popup (int, int, int, int, char *, char *, int);
 void         print_in_middle (WINDOW *, int, int, int, const char *);
diff --git a/src/io.c b/src/io.c
index cd43d68..d1d2f44 100644
--- a/src/io.c
+++ b/src/io.c
@@ -1230,14 +1230,14 @@ io_log_init (void)
 }
 
 void
-io_log_print (struct io_file *log, int line, char *msg)
+io_log_print (struct io_file *log, int line, const char *msg)
 {
   if (log && log->fd)
     fprintf (log->fd, "line %d: %s\n", line, msg);
 }
 
 void
-io_log_display (struct io_file *log, char *msg, char *pager)
+io_log_display (struct io_file *log, const char *msg, char *pager)
 {
   char *choices = "[y/n] ";
   int ans;
diff --git a/src/utils.c b/src/utils.c
index 763d49b..3ee24e0 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -160,7 +160,7 @@ warnbox (const char *msg)
  * Message texts for first line and second line are to be provided.
  */
 void
-status_mesg (char *mesg_line1, char *mesg_line2)
+status_mesg (const char *mesg_line1, const char *mesg_line2)
 {
   wins_erase_status_bar ();
   custom_apply_attr (win[STA].p, ATTR_HIGHEST);