status of internal DMARC support

I'm on SLES 15. Since I enabled TLS, DKIM was compiled by default and it
seems to be working.

SLES provides libspf2-2-1.2.11.

I wanted to add support for DMARC. SLES doen't have anofficial opendmarc
packages so I rebuilt the libopendmarc manually applying some of the
patches present in the build systems of other distros. I then created a
-devel package and installed it on the exim build server.

Unfortunately libopendmarc uses some glibc calls that were made private,
like dn_skipname. I found some patches that a maintainer created to make
them public again (well, he rewrote them) but I think this is too far.

So I'm asking which is the real status of DMARC support inside exim, does
anybody uses it with a recent (>2.34) gligc ?

Should I add spamassassin and let it handle DMARC ? Alternatives ?

Thank you
Francesco

PS: building exim 4.98.2

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