Re: BUG #16320: GSSAPI Error

Stephen Frost <sfrost@snowman.net> writes:
> * Tom Lane (tgl@sss.pgh.pa.us) wrote:
>> Should we document somewhere that we consider that unsupported?
>> Trying it here, I see a bunch of "deprecation" warnings during
>> the build, but it does build --- which might lead people to expect
>> that it'd work.

> There had been discussion on another thread about trying to figure out a
> way to detect the OSX GSSAPI library and refuse to build with GSSAPI
> support when that's what we'd be building against.  I didn't see anyone
> post a patch though and I haven't got an OSX box to play with myself
> easily at hand.

Just poking around, it looks like something along this line would work:

#ifdef GSSKRB_APPLE_DEPRECATED
#error "Postgres doesn't work with the macOS GSSAPI library, please use XXX instead."
#endif

(in any suitable spot after #including gssapi.h)

Now, this is testing the *headers* not the actual *library*, which in
some sense is not the right thing.  But it's probably close enough for
the purpose.

            regards, tom lane