Re: [PoC] Federated Authn/z with OAUTHBEARER - Mailing list pgsql-hackers

On Wed, Jul 9, 2025 at 10:36 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Per "man dlopen", you have to link with libdl to use these functions
> on this platform.  (Curiously, although RHEL9 still says that in the
> documentation, it doesn't seem to actually need -ldl.)  I was able
> to resolve this by adding -ldl in libpq's Makefile:
>
> -SHLIB_LINK += $(filter -lcrypt -ldes -lcom_err -lcrypto -lk5crypto -lkrb5 -lgssapi_krb5 -lgss -lgssapi -lssl
-lsocket-lnsl -lresolv -lintl -lm, $(LIBS)) $(LDAP_LIBS_FE) $(PTHREAD_LIBS) 
> +SHLIB_LINK += $(filter -lcrypt -ldes -lcom_err -lcrypto -lk5crypto -lkrb5 -lgssapi_krb5 -lgss -lgssapi -lssl
-lsocket-lnsl -lresolv -lintl -ldl -lm, $(LIBS)) $(LDAP_LIBS_FE) $(PTHREAD_LIBS) 

Hmm, okay. That analysis and fix look good to me. (It looks like none
of the RHEL animals are testing with Curl yet, and locally I was using
Rocky 9...)

I'll work up a patch to send through the CI. I can't currently test
RHEL8 easily -- Rocky 8 is incompatible with my Macbook? -- which I
will need to rectify eventually, but I can't this week.

Thanks!
--Jacob