Fix various issues (compile warnings etc.)

The fixes include:
 * Add missing return values for some functions,
 * Initialize some variables
 * Fix data declaration to match struct's definition
 * Appropriate casting where needed
 * Forward declaration for some functions

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mark.c b/src/mark.c
index 35c2178..80c605f 100644
--- a/src/mark.c
+++ b/src/mark.c
@@ -158,6 +158,7 @@ nextchar(int *xp, int *yp, int direction, char target, int num)
   debug("nextchar\n");
  
   x = *xp;
+  step = 1;
   adjust = 0;
   width = fore->w_width;
   displayed_line = (char *)WIN(*yp) -> image;