Hi Samba team,

This patch fixes a bug I filed a while back (https://bugzilla.samba.org/show_bug.cgi?id=5412
) that is causing the latest v4-0-test/stable heimdal (and perhaps
other branches?) to fail to compile on OSX. Here is the explanation
from the Mac OSX Man Page for environ(7) as to why environ can't be
accessed directly.

Programs can query and modify the environment, using the
environment rou-tines routines
tines getenv(3), putenv(3), setenv(3) and unsetenv(3). Direct
access can
be made through the global variable environ, though it is
that changes to the enviroment still be made through the
environment rou-tines. routines.

Shared libraries and bundles don't have direct access to
environ, which
is only available to the loader ld(1) when a complete program is
linked. The environment routines can still be used, but if
direct access
to environ is needed, the _NSGetEnviron() routine, defined in
, can be used to retrieve the address of environ
at run-time. runtime.

diff --git a/source/heimdal/lib/roken/roken.h.in b/source/heimdal/lib/
index 82473d7..a3408f2 100644
--- a/source/heimdal/lib/roken/roken.h.in
+++ b/source/heimdal/lib/roken/roken.h.in
@@ -445,8 +445,13 @@ extern int opterr;

+#ifdef __APPLE__
+#define environ (*_NSGetEnviron())
extern char **environ;