gcc -Wall lint:

* thread.c: Include "gdbcmd.h" and <ctype.h>.
	* Makefile.in: Update dependency.
	* thread.c (thread_command): Remove unused variable p.
	* values.c (unpack_double): Use len instead of TYPE_LENGTH (type).
	* valprint.c (print_floating): Correctly check sign bit now that
	we are using unsigned arithmetic.
	* symtab.c (find_pc_line_range): Remove unused variables exact_match,
	ind, and l.

gdb/symtab.c

@@ -1284,9 +1284,6 @@ find_line_pc_range (sal, startptr, endptr)
      struct symtab_and_line sal;
      CORE_ADDR *startptr, *endptr;
 {
-  struct linetable *l;
-  int ind;
-  int exact_match;		/* did we get an exact linenumber match */
   CORE_ADDR startaddr;
   struct symtab_and_line found_sal;