Remove gtkmm20 and two leaf ports that got broken after libsigc++12 removal.

x11/decurs
x11/fluxbg
x11-toolkits/gtkmm20

All ports were last updated upstream in or before 2003.

Fix INDEX after r553767

Somehow rmport failed to detect this, perhaps my INDEX was outdated.

Pointy hat:	rene

In preparation of the update of glib remove the -reference ports

Those ports mainly concern old Gnome2 libraries, the behaviour of this infra
is not compatible with the meson build system (being used in newer version)
the documentation is provided otherwise in the other version

x11*: Add missing USES={gl,gnome,mate}

Drop build dependency on GNU m4.

m4 from base is able to do the job, if properly wrapped to mimic GNU m4

Differential Revision:	https://reviews.freebsd.org/D21835

Bump PORTREVISION for ports depending on the canonical version of GCC
as defined in Mk/bsd.default-versions.mk which has moved from GCC 8.3
to GCC 9.1 under most circumstances now after revision 507371.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, everything INDEX-11 shows with a dependency on lang/gcc9 now.

PR:		238330

Bump PORTREVISION for ports depending on the canonical version of GCC
defined via Mk/bsd.default-versions.mk which has moved from GCC 7.4 t
GCC 8.2 under most circumstances.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, as a double check, everything INDEX-11 showed depending on lang/gcc7.

PR:		231590

Fix build on powerpc64 by adding compiler:c++11-lang to USES.

Approved by:	portmgr (tier-2 blanket)

x11-toolkits/gtkmm20: unbreak build with Clang 6 (C++14 by default)

In file included from module.cc:3:
../../glib/glibmm/module.h:30:1: error: no member named 'string' in the global
namespace; did you mean '::std::string'?
GTKMM_USING_STD(string)
^~~~~~~~~~~~~~~~~~~~~~~
../../glib/glibmmconfig.h:60:57: note: expanded from macro 'GTKMM_USING_STD'
 #  define GTKMM_USING_STD(Symbol) namespace std { using ::Symbol; }
                                                         ^~
/usr/include/c++/v1/iosfwd:194:65: note: '::std::string' declared here
typedef basic_string<char, char_traits<char>, allocator<char> > string;
                                                                ^
class.cc:40:5: error: non-constant-expression cannot be narrowed from type
'guint'
      (aka 'unsigned int') to 'guint16' (aka 'unsigned short') in initializer
list
      [-Wc++11-narrowing]

Remove libintl.so.9 compatibility link that was added in r374303 to
prevent massive PORTREVISION bumps.  Bump dependent ports that have not
been bumped since.

Remove ${PORTSDIR}/ from dependencies, categories v, w, x, y, and z.

With hat:	portmgr
Sponsored by:	Absolight

- Drop @dirrm* from and add empty directories to pkg-plists

Approved by:	portmgr blanket, kwm (for gnome@ ports)

Sprinkle some PORTSCOUT macros around to either mark ports:
 * ignore because there will not be any new releases.
 * check specific versions or ignore devel versions.

When linking a library libA with a library libB using libtool, if libB.la
exists, libtool will add all libraries libB.la refers to (dependency_libs
field) to the linker command line and store them in the dependency_libs
field of libA.la.  So everything that subsequently links with libA will also
link to these extra libraries.  This causes too much overlinking.

This commit modifies Mk/Uses/libtool.mk so it empties the dependency_libs
field in .la libraries during staging.  However, because .la libraries have
very limited use when dependency_libs is empty it makes sense to completely
remove them during staging.

So with this commit USES=libtool is modified to remove .la libraries and a
new form (USES=libtool:keepla) is introduced in case they need to be kept
(dependency_libs is still emptied).

Convert gtkmm20 to stage
USES=libtool
Chase gtkmm20 shlib number change

Fix pkgname collisions in gtk??[mm] ports.

Add NO_STAGE all over the place in preparation for the staging support (cat:
x11-toolkits)

Add an expicit dependency on pkgconf

Add patches to fix the build with libc++.

Reported by:	theraven@

* Update the glib to 2.34.3 and gtk20 to 2.24.17 and gtk30 to 3.6.4 which
  are the latest stable releases.
* Update vala to the newest stable release 0.18.1, also update a few ports
  in the gtk/gnome stack.
* The c++ bindings ports for glib, atk, gconf, etc, have now USE_GNOME toggles.
* Remove pkg-config run depends from glib20 and freetype2. This doesn't
  eliminate pkg-config run dependency completely, a second phase is needed
  and is planned.
* Support for .:run. and .:build. for USE_GNOME components was added.
  Currently only libxml2 and libxslt support this mechanism.
* Updates of the telepathy stack and empathy.
* Trim makefile headers, convert ports to new options, trim off library
  versions for some ports.
* Fix other ports so they build with the new glib version.

Thanks to miwi and crees for helping out with some exp-runs.
Approved by:	portmgr (miwi & bapt)
Obtained from:	gnome team repo

- update png to 1.5.10

- Kick MD5 support

Sync to new bsd.autotools.mk

- update to 1.4.1
Reviewed by:    exp8 run on pointyhat
Supported by:   miwi

- update to jpeg-8

Fix typo in previous commit.

Submitted by:   pointyhat

- Switch SourceForge ports to the new File Release System: categories starting
with X

-Repocopy devel/libtool15 -> libtool22 and libltdl15 -> libltdl22.
-Update libtool and libltdl to 2.2.6a.
-Remove devel/libtool15 and devel/libltdl15.
-Fix ports build with libtool22/libltdl22.
-Bump ports that depend on libltdl22 due to shared library version change.
-Explain what to do update in the UPDATING.

It has been tested with GNOME2, XFCE4, KDE3, KDE4 and other many wm/desktop
and applications in the runtime.

With help:      marcus and kwm
Pointyhat-exp:  a few times by pav
Tested by:      pgollucci, "Romain Tartière" <romain@blogreen.org>, and
                a few MarcusCom CVS users. Also, I might have missed a few.
Repocopy by:    marcus
Approved by:    portmgr

- bump all port that indirectly depends on libjpeg and have not yet been bumped
or updated
Requested by:   edwin

- Use GNOME macro instead of ${MASTER_SITE_GNOME}, remove
  MASTER_SITE_SUBDIR when possible.

PR:             ports/125243
Submitted by:   pgollucci
Reworked by:    myself
Tested on:      pointyhat exp-run (pav)

Restore previous PORTREVISIONs that were decremented as part of the gettext
bump.

Reported by:    iKris

Bump portrevision due to upgrade of devel/gettext.

The affected ports are the ones with gettext as a run-dependency
according to ports/INDEX-7 (5007 of them) and the ones with USE_GETTEXT
in Makefile (29 of them).

PR:             ports/124340
Submitted by:   edwin@
Approved by:    portmgr (pav)

Fix the build with new glib 2.16.

Reported by:    pointyhat

- Welcome X.org 7.2 \o/.
- Set X11BASE to ${LOCALBASE} for recent ${OSVERSION}.
- Bump PORTREVISION for ports intalling files in ${X11BASE}.

Use libtool port instead of included version to avoid objformat a.out botch

Fix the build on amd64.

Reported by:    pointyhat via kris

Chase the GNOME X11BASE to LOCALBASE move, and fix the build with the
new freetype2 where needed.

Submitted by:   mezz, ahze, pav, and many others
Approved by:    portmgr (implicit, kris)

- Add header in these *-reference ports.
- Fix a few of pkg-descr by chase the rename.
- Move all PORTREVISION and PORTEPOCH to top with ?=.
- Put USE_X_PREFIX back in, but under REFERENCE_PORT, and remove PREFIX? and
  USE_XLIB. This fix ports to use the correct mtree when you change the prefix,
  for example:

        Incorrect: (Without USE_X_PREFIX)
        ================================
        # cd /usr/ports/x11-toolkits/gtk20
        # make -V MTREE_FILE
        /etc/mtree/BSD.x11-4.dist
        # make PREFIX=/tmp/foo -V MTREE_FILE
        /etc/mtree/BSD.local.dist <-- Here...
        ================================