On 07/12/2012 02:27 PM, Jim Meyering wrote: > I didn't really understand the cause
That one is one of my least favorite warnings because sometimes it warns about real bugs but often, as in your case, the warning is either bogus or so hard to figure out that it might as well be bogus. I see that you and I and others have been filing GCC bug reports in this area: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51309 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48267 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52904 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34515 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52560 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49234 In this particular case the shred.c rewrite seems harmless.
