Re: NetBSD vs libxml2

On 08/11/2018 01:18 PM, Tom Lane wrote:
> In a moment of idle curiosity, I tried to build PG --with-libxml
> on NetBSD-current (well, mostly current, from May or so).
> The configure script blew up, complaining that it couldn't execute
> a test program. Investigation showed that xml2-config reports this:
>
> $ xml2-config --libs
> -Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lxml2 -L/usr/lib -lz -L/usr/lib -llzma -L/usr/lib -lm
>
> and we're only paying attention to the -L switches out of that.
> So we successfully link to /usr/pkg/lib/libxml2.so, but then
> execution fails for lack of rpath pointing at /usr/pkg/lib.
>
> We could fix this by teaching configure to absorb -Wl,-R... switches
> into LDFLAGS from xml2-config's output, and that seems to make things
> work, but I wonder whether we should or not. This seems like a new height
> of unfriendliness to non-default packages on NetBSD's part, and it's a bit
> hard to believe the behavior will make it to a formal release. I don't
> see any comparable behavior on FreeBSD for instance --- it puts packages'
> libraries into /usr/local/lib, but that seems to be searched automatically
> without additional switches beyond -L. Don't have an easy way to check
> things on OpenBSD.
>

OpenBSD-6.3's "xml2-config --libs" doesn't contain any rpath settings,
it's pretty much like the one on my (fairly old) FBSD machine, as you
describ4ed above.

cheers

andrew

--
Andrew Dunstan https://www.2ndQuadrant.com
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