Log message:
- fine grained X11 dependencies for packages which have either USE_IMAKE
  or USE_X11BASE set, but don't include mk/x11.buildlink3.mk directly or
  via buildlink3.mks
- introduce BUILDLINK_PREFIX.libXpm as alias for BUILDLINK_PREFIX.xpm
  in the !modular case
- fix some cases where the check for libX11 couldn't work at all by using
  C++ for compilation without including the proper headers

Verified using a full X11_TYPE=xorg bulk build without additional
breakage. Discussed with salo@, wiz@ and send to packages@ for feedback.

Log message:
Mechanically replace all includes of buildlink3.mk of the following
packages with the modular Xorg equivalent. Those are falling back
to the old location by default, so this commmit doesn't change
dependencies.

graphics/xpm ==> x11/libXpm
fonts/Xft2 ==> x11/libXft
x11/Xfixes ==> x11/libXfixes
x11/xcursor ==> x11/libXcursor
x11/Xrender ==> x11/libXrender
x11/Xrandr ==> libXrandr

Log message:
Oops, the XBILL_HOME must end in a slash, to make it fully workable on
Solaris. PKGREVISION++

Log message:
Needs man/man6 before installation.

Log message:
Building XBill using the modified IMakefile (see patch-aa) on Solaris
does not work. Therefore, the XBILL_HOME is set explicitly in CPPFLAGS.
It's not the best way to fix it, but at least it works.

Log message:
Fixed PKGMANDIR.

Log message:
Uses C++.

Log message:
Recursive revision bump / recommended bump for gettext ABI change.

Log message:
Remove USE_PKGINSTALL from pkgsrc now that mk/install/pkginstall.mk
automatically detects whether we want the pkginstall machinery to be
used by the package Makefile.

Log message:
Sorted PLIST.