In module winbind_nss.h, and winbind_nss_linux.h it is testing the values of
HAVE_NSS_H and HAVE_NS_API_H but not checking to see if they were defined.

The OpenVMS C compiler is reporting that tests are being done for a value of an
undefined macro, which will be interpreted as being defined to zero.

Because these macros are tested for being defined in other modules, using a
#define HAVE_NS_API_H 0
to suppress the message will work.


If the code in wiinbind_nss.h could be changed to:

#elif defined(HAVE_NSS_H)

and

#elif defined(HAVE_NS_API_H)

It would eliminate the VMS C compiler diagnostics.

A similar change may be useful in the winbind_nss_linux.h module.