List extra files installed on MacOS. It is probable that they don't only
appear on MacOS, but I guess this will do for now.
PR 49473 from Sevan Janiyan.
typos
(MASTER_SITES) Strip off 'old/' leaf. Both current and new exist there.
Update HOMEPAGE and MASTER_SITES, both were 'Server not found' status.
Update MASTER_SITES, it was 'Server not found' status.
MASTER_SITES and HOMEPAGE moved from libtom.org to libtom.net
Sort out depends.
 - Add options.mk and make most of the heavy depends optional.
 - Add optional support for SDL, disabled by default.
 - Fix curses buildlinking; closes PR 49478.
 - Update readline support for semi-recent API changes.
 - Update PLIST accordingly.

PKGREVISION -> 20.
smalltalk
Fix message date printing, from PR 49479; submitted upstream.
From Robert Elz.
PKGREVISION++
exmh
Use xm, not xl in xendomains.

xl doesn't seem to work in 4.1.  xm works for me.  Comments from
port-xen tend to agree.  So make xendomains use xm.
If LOWER_OPSYS is "darwin", don't pass this as the OS type as this
package unsurprisingly has no idea what a "darwin" is. Instead use
"netbsd" in the hopes that the netbsd config is adequate for all
pkgsrc use. (If this doesn't work, try "macosx".)

I'm going to continue passing the contents of LOWER_OPSYS everywhere
else, because there's some chance it might actually be working as is
and we're in a freeze.

Might fix PR 37513.
Add NetBSD support for PowerPC cache line handling. From Ben Gergely
in PR 48865.
Fix netbsd-5 build by SUBSTing out fabsl(). From John D. Baker in PR 48980.
Add Linux-specific PLIST entries. Also enable PLIST.shm for Linux.
From Thomas Orgis in PR 49080.
PKGREVISION -> 4
openmpi
Add CPPFLAGS/CFLAGS.SunOS per followup to PR 49343.
Adjust one of Joerg's clang patches so it still works on gcc.

This would be much easier if clang didn't lie about itself being gcc.
Create minimum services files on chroot environment as recent
NetBSD current.

Bump PKGREVISION.
Note update of net/ntp4 package to 4.2.8nb1.