Re: [Valgrind-users] Errors installing Valgrind on Mac OS X 10.11 make[3]: *** [memcheck-amd64-darwin] Error 1

[John R. <jr...@bi...>]

> Undefined symbols for architecture x86_64:
>
>   "___bzero", referenced from:
>
>       _hijack_thread_state in libcoregrind-amd64-darwin.a(libcoregrind_amd64_darwin_a-syswrap-amd64-darwin.o)
>
>       _RRegUniverse__init in libvex-amd64-darwin.a(libvex_amd64_darwin_a-host_generic_regs.o)

$ grep -r __bzero valgrind-3.12

===== coregrind/m_main.c
#if defined(VGO_darwin) && DARWIN_VERS == DARWIN_10_10

/* This might also be needed for > DARWIN_10_10, but I have no way
    to test for that.  Hence '==' rather than '>=' in the version
    test above. */
void __bzero ( void* s, UWord n );
void __bzero ( void* s, UWord n )
{
    (void) VG_(memset)( s, 0, n );
}

#endif
=====

So a timid developer chose "not functional" versus
"works, but perhaps a few microseconds slower".

Just change it to
	#if defined(VGO_darwin)
omitting the test of DARWIN_VERS.