Re: Trying to get sendmail-8.15.1 from pkgsrc working on NetBSD-5, libresolv issues

[christos%astron.com@localhost (Christos Zoulas)]

In article <201804301850.w3UIoqh2025040%lothlorien.nfbcal.org@localhost>,
Brian Buhrow  <buhrow%nfbcal.org@localhost> wrote:
>	hello.  I'm trying to get sendmail-8.15.1 to build and operate from
>pkgsrc under NetBSD-5.  It builds, but links against libresolv, which isn't
>thread safe.  Sendmail-8.14, which I'm currently running doesn't use
>threading so this isn't a problem.  It seems I have two options here to fix
>the trouble:  1.  Stop linking against the thread library.  2.  Link
>against a thread safe version of the libresolv library.  Option 1 seems
>less than optimal since the point of this exercise is to get sendmail
>running with a modern version of openssl.  Option 2 brings up several
>questions:
>
>1.  Where is the insertion of the -lresolv command line option  controlled
>in the build process?  I don't see it in the pkgsrc/mail/sendmail/Makefile
>or the pkgsrc/mail/sendmail/Makefile.common file.  Nor do I see it in the
>field of mk files in the pkgsrc/mk/*.mk tree, though I must just be missing
>it.
>
>2.  It looks like the thread safe replacement of -lresolv is -llwres. Does
>anyone know if this library is a linkable drop in replacement for -lresolv?
>

Resolv is thread safe but you need to use the "n" functions, like res_ninit,
res_nsend etc. sendmail should know how to find them...

christos