bug#9031: Unused vars etc. in chartab.c, composite.c, gtkutil.c

[Paul Eggert]

This patch fixes some minor problems on the Emacs trunk.

Normally I'd just install this, but we're in a feature freeze
now and this patch doesn't fix any actual bugs, so I'm filing
a bug report instead, to record the issues.

# Bazaar merge directive format 2 (Bazaar 0.90)
# revision_id: eggert@cs.ucla.edu-20110709062840-jdrk1zrclfflltae
# target_branch: bzr+ssh://eggert@bzr.savannah.gnu.org/emacs/trunk
# testament_sha1: 935c16305b271d2f38af33043c16de6e23c306ca
# timestamp: 2011-07-08 23:28:47 -0700
# base_revision_id: sdl.web@gmail.com-20110709031157-d7vix3jz1gpb29bw
# 
# Begin patch
=== modified file 'src/ChangeLog'
--- src/ChangeLog       2011-07-08 20:39:30 +0000
+++ src/ChangeLog       2011-07-09 06:28:40 +0000
@@ -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.

=== modified file 'src/chartab.c'
--- src/chartab.c       2011-07-07 04:16:52 +0000
+++ src/chartab.c       2011-07-09 06:28:40 +0000
@@ -485,7 +485,6 @@
 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 @@
                    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 @@
       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 @@
   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 @@
    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;

=== modified file 'src/composite.c'
--- src/composite.c     2011-07-07 16:18:25 +0000
+++ src/composite.c     2011-07-09 06:28:40 +0000
@@ -967,7 +967,6 @@
 }
 
 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. */

=== modified file 'src/gtkutil.c'
--- src/gtkutil.c       2011-07-08 17:57:55 +0000
+++ src/gtkutil.c       2011-07-09 06:28:40 +0000
@@ -647,7 +647,6 @@
       /* 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);

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