workaround new gcc-4.6 set-but-unused build warnings

git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@1926 b68d4a1b-bc3d-0410-92ed-d4ac073336b7

urjtag/ChangeLog

@@ -1,3 +1,8 @@
+2011-06-29  Mike Frysinger  <vapier@gentoo.org>
+
+  * src/tap/cable.c (urj_tap_cable_wait): Tweak code style to silence warnings
+    thrown up by gcc-4.6 and cause build failures with -Werror.
+
 2011-06-27  Jie Zhang  <jie.zhang@analog.com>
 
   * include/urjtag/Makefile.am (nodist_pkginclude_HEADERS): New and

urjtag/src/tap/cable.c

@@ -522,15 +522,13 @@ urj_tap_cable_wait (urj_cable_t *cable)
 {
     int i;
     volatile int j;
-    uint32_t delay = cable->delay;
 
-    if (delay == 0)
-        return;
-
-    for (i = 0; i < delay; ++i)
-    {
+    j = 0;
+    for (i = 0; i < cable->delay; ++i)
         j = i;
-    }
+
+    /* Avoid gcc set-but-unused warnings */
+    cable->delay = j;
 }
 
 static urj_cable_t *