Attribute GH PR #369: https://github.com/ArcticaProject/nx-libs/pull/369

This is basically a backport of the following commits + replacing
xalloc/xfree by malloc/free. Fixes ArcticaProject/nx-libs#358.

   commit 2761c103311a1160bc483fd0367d654733df8598
   Author: Daniel Stone <daniel@fooishbar.org>
   Date:   Mon Nov 5 14:03:26 2007 +0000

       OS: Remove usage of alloca

       Replace with heap allocations.

   commit 5e363500c86042c394595e1a6633581eb8fcd1bb
   Author: Daniel Stone <daniel@fooishbar.org>
   Date:   Mon Nov 5 14:38:28 2007 +0000

       OS: Remove ALLOCATE_LOCAL from os.h

       Remove ALLOCATE_LOCAL_FALLBACK and DEALLOCATE_LOCAL_FALLBACK from os.h, and
       remove the include of Xalloca.h as well.

Attributes GH PR #318: https://github.com/ArcticaProject/nx-libs/pull/318

 Fixes ArcticaProject/nx-libs#237.

Xserver/Xext/shmint.h: Provide header file exporting ShmRegisterFunc and ShmRegisterFbFuncs (plus ShmSetPixmapFormat as a by-product).

 commit 9ceffb6b92e55f0d74d71489900d43940f14dfd9
 Author: Eric Anholt <anholt@freebsd.org>
 Date:   Wed Dec 28 10:37:17 2005 +0000

    Merge from xserver a header for shm's server internal functions, which are
        called by DDXes. Desired by XGL, and should be used in other locations,
        probably.
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

Attributes GH PR #310: https://github.com/ArcticaProject/nx-libs/pull/310

Fixes: ArcticaProject/nx-libs#265.

 - Support for i18n in libNX_X11 is static only, has ever been.
 - Thus, the files XlcSL.[co], XlcDL.[co], XDefaultIMIF.[co],
   XDefaultOMIF.[co] and lcDynamic.[co] become obsolete.

doc/libNX_X11/lcUniConv: Move over the rather-documentary files 8bit_tab_to_h.c and cjk_tab_to_h.c to nx-libs's doc/ folder.

doc/libNX_X11/lcUniConv: Pull over README from X.org's libX11 to document the origin and purpose of 8bit_tab_to_h.c and cjk_tab_to_h.c.

Attributes GH PR #374: https://github.com/ArcticaProject/nx-libs/pull/374

 Fixes ArcticaProject/nx-libs#324.

misc nx-X11/programs/Xserver/{composite,dix,randr}/: switch to using reallocarray, since it has been ported now.

nx-X11/{config/cf/{{Imake,X11}.tmpl,linux.cf},programs/Xserver/{include/os.h,os/{Imakefile,reallocarray.c}}: backport reallocarray() implementation.

misc nx-X11/programs/Xserver/{hw/nxagent,miext,render}/: move code around so that we can drop nx-X11/programs/Xserver/render/miglyph.c (and by extension nx-X11/programs/Xserver/hw/nxagent/NXmiglyph.c.)

This is essentially a bastardized cross/backport of these X.Org commits - based
on our current architecture:

commit 4b14c9a9cd2033d3839c4ba364d41ab4c4b198ab
Author: Eric Anholt <eric@anholt.net>
Date:   Fri Oct 19 16:34:54 2007 -0700

    Replace calls to Glyphs screen hook with CompositeGlyphs and remove dead code.

    Not all of the DDX/miext Glyphs hook implementations have been removed, but
    they should be.

and

commit 2251572062b2c25643671b8d5070de1c3f7ae976
Author: Aaron Plattner <aplattner@nvidia.com>
Date:   Fri Oct 26 15:13:50 2007 -0700

    Restore the CompositeGlyphs -> ps->Glyphs -> miGlyphs callchain to allow acceleration architectures to wrap above miGlyphs.

Conflicts:
	nx-X11/programs/Xserver/render/miglyph.c
	nx-X11/programs/Xserver/render/mipict.h
	nx-X11/programs/Xserver/render/picture.c

nx-X11/programs/Xserver/mi/{Imakefile,mibank.{c,h}}: backport ffaae7c0c69a51a53a76146c79f3630ae197a443.

 Down with mibank!

 Fixes ArcticaProject/nx-libs#366.

Attributes GH PR #375: https://github.com/ArcticaProject/nx-libs/pull/375

Reviewed-by: Ulrich Sibiller <uli42@gmx.de>  -- Fri, 03 Mar 2017 02:20:38 -0800

 Fixes ArcticaProject/nx-libs#328.

 Fixes ArcticaProject/nx-libs#325.
 Fixes ArcticaProject/nx-libs#326.

Attribute GH PR #360: https://github.com/ArcticaProject/nx-libs/pull/360

Attributes GH PR #314: https://github.com/ArcticaProject/nx-libs/pull/314

Fixes: ArcticaProject/nx-libs#51.

nxcomp/Loop.cpp: Ignore, options= nx/nx parameter, if file options path starts with /dev/, /proc/, or /sys/.

 Partially resolved ArcticaProject/nx-libs#51.

Attributes GH PR #363: https://github.com/ArcticaProject/nx-libs/pull/363

 Inspired by X.org commits:

 commit 08093c25a91c07ab8af7cece9bba738b827cfd1b
 Author: Alan Coopersmith <alan.coopersmith@oracle.com>
 Date:   Mon Oct 24 23:16:30 2011 -0700

    Convert some malloc + strncpy pairs into strndup calls
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>

 commit 816b79dd061e9839cec94a4986a7820b70ca8a7f
 Author: Mikhail Gusarov <dottedmag@dottedmag.net>
 Date:   Thu May 13 03:45:21 2010 +0700

    Remove useless casts
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Keith Packard <keithp@keithp.com>

 This PR ships a tiny change in MakeAtom, that we adopted.
 We did not adopt the full commit.

 commit 5623c27700b7b23a8dbbd8c8f45e5d4fa0c667e3
 Author: Alan Coopersmith <alan.coopersmith@sun.com>
 Date:   Mon Feb 2 19:25:14 2009 -0800

    Constify atom name strings

    Changes MakeAtom to take a const char * and NameForAtom to return them,
    since many callers pass pointers to constant strings stored in read-only
    ELF sections.   Updates in-tree callers as necessary to clear const
    mismatch warnings introduced by this change.
Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

Attributes GH PR #311: https://github.com/ArcticaProject/nx-libs/pull/311

 In NXAGENT_SERVER we can also fully rely on libXfont
 for handling fpe internals.

 Backported from X.org:

 commit 75536ee80595c79bba95a1fb6844126ee08486d4
 Author: Tiago Vignatti <tiago.vignatti@nokia.com>
 Date:   Wed Jun 23 15:18:03 2010 +0300

    dix: use one single function to register fpe fonts

    X server doesn't need to understand fpe internals, so use
    register_fpe_functions from libXfont.

    It's required to get new version of libXfont, therefore adjust it to be passed
    to autoconf.
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

nx-libs.spec: Handle fonts dir symlinking and install /usr/share/nx/fonts symlink into nxagent bin:pkg. This change probably needs more fine-tuning for the various other RPM distros and versions out there.

 Thanks to Orion Poplawski for providing a code
 snippet with a general approach of handling this.

For consistency, apply patch from previous commit (630a7c3) to the original Xserver/dix/dixfonts.c file, although the code is undef'ed when NXAGENT_SERVER is defined.

{dix/,hw/nxagent/NX}dixfont.{c,h}: Support using builtin-fonts. Makes dependency on X11's misc fonts package obsolete.

 This backports a mixture of these X.org commits (only focusing
 on SetDefaultFontPath() function):

 commit 03e8bfa1d122f7dea905d48c93cfd54afd991dfd
 Author: Alan Coopersmith <alan.coopersmith@oracle.com>
 Date:   Sat Nov 27 20:09:04 2010 -0800

    Convert existing Xprintf style calls to asprintf style
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>

 commit 12e46e83733b47d2704e1509960192365102af46
 Author: Tiago Vignatti <tiago.vignatti@nokia.com>
 Date:   Fri Mar 25 22:07:31 2011 +0200

    dix: fix memory leak in SetDefaultFontPath
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Nicolas Peninguy <nico@lostgeeks.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>

 commit 6592db6bb526f0c43b4c7b55859c629709e039b4
 Author: Mikhail Gusarov <dottedmag@dottedmag.net>
 Date:   Fri Jun 4 16:58:58 2010 +0700

    Get rid of xstrdup when argument is definitely non-NULL

    Replace xstrdup with strdup when either constant string is
    being duplicated or argument is guarded by conditionals and
    obviously can't be NULL
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>

 commit f56cbe1ef24415d0142b9a7d0ab0a031069ccb52
 Author: Rémi Cardona <remi@gentoo.org>
 Date:   Mon Sep 14 17:09:59 2009 +0200

    dix: append "built-ins" to the font path in SetDefaultFontPath

    49b93df8a3002db7196aa3fc1fd8dca1c12a55d6 made the hard dependency on
    a "fixed" font go away but only Xorg could use the built-ins fonts by
    default.

    With this commit, all DDXs get "built-ins" appended to their FontPath, not
    just Xorg.

    Tested with Xorg, Xvfb and Xnest.
Signed-off-by: Rémi Cardona <remi@gentoo.org>
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Tested-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

 commit 49b93df8a3002db7196aa3fc1fd8dca1c12a55d6
 Author: Paulo Cesar Pereira de Andrade <pcpa@mandriva.com.br>
 Date:   Wed Jan 7 19:37:03 2009 -0200

    Default to use standard bitmap fonts, with builtins as fallback

      The builtin-fonts configure option was removed, as it at best should
    have been a runtime option. Instead, now it always register all "font
    path element" backends, and adds built-ins fonts at the end of the
    default font path.
      This should be a more reasonable solution, to "correct" the most
    common Xorg FAQ (could not open default font 'fixed'), and also don't
    break by default applications that use only the standard/historical
    X Font rendering.
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

 Fixes ArcticaProject/nx-libs#84.
 Fixes ArcticaProject/nx-libs#285.

debian/nx-x11-common.{links,dirs}: Make sure /usr/share/fonts/X11 are reachable for nxagent (via placing a symlink to /usr/share/nx/fonts).

Xserver/hw/nxagent/Font.c: Drop references to /usr/NX/share/fonts/base as default font path, entirely.