[PATCH] Silence up a false positive warning in libiberty (PR middle-end/56526)

[Jakub Jelinek]

Hi!

While wrapper_sect_offset is always initialized if
(gnu_sections_found & SOMO_WRAPPING) != 0 and used only guarded with that
same condition, as the PR says apparently we get a false positive maybe
uninitialized warning for it still.  I'd say it is a good programming style
to just initialize such vars, especially in performance non-critical code.

Ok for trunk?

2013-03-05  Jakub Jelinek  <ja...@redhat.com>

        PR middle-end/56526
        * simple-object-mach-o.c (simple_object_mach_o_segment): Initialize
        wrapper_sect_offset to avoid a warning.

--- libiberty/simple-object-mach-o.c.jj 2013-01-07 14:14:46.000000000 +0100
+++ libiberty/simple-object-mach-o.c    2013-03-05 11:46:19.574157009 +0100
@@ -432,7 +432,7 @@ simple_object_mach_o_segment (simple_obj
   size_t index_size;
   unsigned int n_wrapped_sects;
   size_t wrapper_sect_size;
-  off_t wrapper_sect_offset;
+  off_t wrapper_sect_offset = 0;
 
   fetch_32 = (omr->is_big_endian
              ? simple_object_fetch_big_32

        Jakub