On Sat, 13 Aug 2005, Jeremy C. Reed wrote:

> mk/dlopen.buildlink3.mk is not covered in the pkgsrc guide.
>
> When should it be used?

Whenever dlopen is used in the package.  For instance, packages that use
devel/libltdl (a dlopen abstraction layer) indirectly include
dlopen.buildlink3.mk also.

> /usr/lib/silc/libsilc.so: undefined reference to `dlerror'
> /usr/lib/silc/libsilc.so: undefined reference to `dlclose'
> /usr/lib/silc/libsilc.so: undefined reference to `dlopen'
> /usr/lib/silc/libsilc.so: undefined reference to `dlsym'

Then yes, dlopen.buildlink3.mk is needed.  It's a no-op on platforms with
dlopen in libc -- such as NetBSD.

-- 
-- Todd Vierling <tv@duh.org> <tv@pobox.com> <todd@vierling.name>