Valgrind issue

[andrewchambers]

Running the compiler on amd64 ubuntu I get the following valgrind report. Is this a false positive?

andrew@blackheart:~/src/c$ valgrind bin/6c test/execute/0001-sanity.c
==3118== Memcheck, a memory error detector
==3118== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==3118== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info
==3118== Command: bin/6c test/execute/0001-sanity.c
==3118== 
==3118== Conditional jump or move depends on uninitialised value(s)
==3118==    at 0x4540D6: __linkin_atfork (in /home/andrew/src/c/bin/6c)
==3118==    by 0x42CDA3: ptmalloc_init.part.7 (in /home/andrew/src/c/bin/6c)
==3118==    by 0x42D1F4: malloc_hook_ini (in /home/andrew/src/c/bin/6c)
==3118==    by 0x47AA3A: _dl_get_origin (in /home/andrew/src/c/bin/6c)
==3118==    by 0x45499E: _dl_non_dynamic_init (in /home/andrew/src/c/bin/6c)
==3118==    by 0x455797: __libc_init_first (in /home/andrew/src/c/bin/6c)
==3118==    by 0x409B3B: (below main) (in /home/andrew/src/c/bin/6c)
...