[Bug libc/11478] New: __tzset_parse_tz doesn't conform to POSIX

["suzuki at in dot ibm dot com" <sourceware-bugzilla at sourceware dot org>]

The __tzset_parse_tz fails to parse the valid string formats as described by POSIX.

This was introduced with the following commit.

http://sourceware.org/git/?p=glibc.git;a=commit;h=82780cbee540bc7e61de6eb165d0f3ec7aa9e549

$ cat tzset-minimal.c 
#include <time.h>

extern char* tzname[];


main()
{

	tzset();
	printf ("std tzname is  %s\n", *tzname[0]?tzname[0]:"NULL");
	return 0;
}
$ TZ="A?BC0" ./tzset-minimal
std tzname is  NULL

-- 
           Summary: __tzset_parse_tz doesn't conform to POSIX
           Product: glibc
           Version: 2.9
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: suzuki at in dot ibm dot com
                CC: glibc-bugs at sources dot redhat dot com
 GCC build triplet: all
  GCC host triplet: all
GCC target triplet: all


http://sourceware.org/bugzilla/show_bug.cgi?id=11478

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