Fix minor problems found by static checking.

* chartab.c (char_table_set_range, map_sub_char_table)
(uniprop_table_uncompress): Remove unused locals.
(uniprop_table): Now static.
* composite.c (_work_char): Remove unused static var.
* gtkutil.c (qttip_cb): Remove stray no-effect statement.

4 files changed, 8 insertions, 9 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 3cf90d10289..a71a48f3a81 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,12 @@
 2011-07-08  Paul Eggert  <eggert@cs.ucla.edu>
 
+	Fix minor problems found by static checking.
+	* chartab.c (char_table_set_range, map_sub_char_table)
+	(uniprop_table_uncompress): Remove unused locals.
+	(uniprop_table): Now static.
+	* composite.c (_work_char): Remove unused static var.
+	* gtkutil.c (qttip_cb): Remove stray no-effect statement.
+
 	Use pthread_sigmask, not sigprocmask (Bug#9010).
 	sigprocmask is portable only for single-threaded applications, and
 	Emacs can be multi-threaded when it uses GTK.
diff --git a/src/chartab.c b/src/chartab.c
index e900a3ae71f..efe23eca83f 100644
--- a/src/chartab.c
+++ b/src/chartab.c
@@ -485,7 +485,6 @@ Lisp_Object
 char_table_set_range (Lisp_Object table, int from, int to, Lisp_Object val)
 {
   struct Lisp_Char_Table *tbl = XCHAR_TABLE (table);
-  Lisp_Object *contents = tbl->contents;
 
   if (from == to)
     char_table_set (table, from, val);
@@ -759,8 +758,6 @@ map_sub_char_table (void (*c_function) (Lisp_Object, Lisp_Object, Lisp_Object),
 		    Lisp_Object function, Lisp_Object table, Lisp_Object arg, Lisp_Object val,
 		    Lisp_Object range, Lisp_Object top)
 {
-  /* Pointer to the elements of TABLE. */
-  Lisp_Object *contents;
   /* Depth of TABLE.  */
   int depth;
   /* Minimum and maxinum characters covered by TABLE. */
@@ -777,14 +774,12 @@ map_sub_char_table (void (*c_function) (Lisp_Object, Lisp_Object, Lisp_Object),
       struct Lisp_Sub_Char_Table *tbl = XSUB_CHAR_TABLE (table);
 
       depth = XINT (tbl->depth);
-      contents = tbl->contents;
       min_char = XINT (tbl->min_char);
       max_char = min_char + chartab_chars[depth - 1] - 1;
     }
   else
     {
       depth = 0;
-      contents = XCHAR_TABLE (table)->contents;
       min_char = 0;
       max_char = MAX_CHAR;
     }
@@ -1143,7 +1138,6 @@ uniprop_table_uncompress (Lisp_Object table, int idx)
   Lisp_Object sub = make_sub_char_table (3, min_char, Qnil);
   struct Lisp_Sub_Char_Table *subtbl = XSUB_CHAR_TABLE (sub);
   const unsigned char *p, *pend;
-  int i;
 
   XSUB_CHAR_TABLE (table)->contents[idx] = sub;
   p = SDATA (val), pend = p + SBYTES (val);
@@ -1316,7 +1310,7 @@ uniprop_get_encoder (Lisp_Object table)
    function may load a Lisp file and thus may cause
    garbage-collection.  */
 
-Lisp_Object
+static Lisp_Object
 uniprop_table (Lisp_Object prop)
 {
   Lisp_Object val, table, result;
diff --git a/src/composite.c b/src/composite.c
index cf1e053f027..d402d5ad0c4 100644
--- a/src/composite.c
+++ b/src/composite.c
@@ -967,7 +967,6 @@ autocmp_chars (Lisp_Object rule, EMACS_INT charpos, EMACS_INT bytepos, EMACS_INT
 }
 
 static Lisp_Object _work_val;
-static int _work_char;
 
 /* 1 iff the character C is composable.  Characters of general
    category Z? or C? are not composable except for ZWNJ and ZWJ. */
diff --git a/src/gtkutil.c b/src/gtkutil.c
index dfc5b63f375..35b366222de 100644
--- a/src/gtkutil.c
+++ b/src/gtkutil.c
@@ -647,7 +647,6 @@ qttip_cb (GtkWidget  *widget,
       /* Change stupid Gtk+ default line wrapping.  */
       p = gtk_widget_get_parent (x->ttip_lbl);
       list = gtk_container_get_children (GTK_CONTAINER (p));
-      iter;
       for (iter = list; iter; iter = g_list_next (iter))
         {
           GtkWidget *w = GTK_WIDGET (iter->data);