Do not use global variables where it is not necessary.

Attributes GH PR #487: https://github.com/ArcticaProject/nx-libs/pull/487

Fixes ArcticaProject/nx-libs#486

Attributes GH PR #474: https://github.com/ArcticaProject/nx-libs/pull/474

nxcompshad: Rewrite Logger class methods to properly take advantage of the 'gnu_printf' format attribute.

nxcompshad/src/Shadow.cpp: Drop duplicate prototype for NXShadowRemoveAllUpdaters(). Already in Shadow.h.

nxcompshad/src/Regions.h: Avoid warning: ‘typedef’ was ignored in this declaration. Drop typedef declaration from _XRegion struct.

nxproxy/configure.ac: Have AC_LANG before NX_COMPILER_BRAND. Thanks to Ionic for spotting this same flaw in nxcompshad.

Attributes GH PR #473: https://github.com/ArcticaProject/nx-libs/pull/473

Fixes: ArcticaProject/nx-libs#133

 This also solves the last remnant of overlinking as described in GH issue #133.

 Fixes ArcticaProject/nx-libs#133.

 Fixes ArcticaProject/nx-libs#482

 Attributes GH PR #478: https://github.com/ArcticaProject/nx-libs/pull/478

 Reviewed by Ulrich Sibiller <uli42@gmx.de>  -- Mon, 10 Jul 2017 09:18:09 +0000 (UTC)

Report Xlib-side window IDs to session.log in machine readable form. This feature can be enabled by the cmdline options -reportwids and -reportprivatewids.

Mesa.patches: Disable 4001_Fix-non-working-GLX-in-64bit-Xorg-7.0.patch. It patches a file, we don't build and that we remove in roll-tarball.sh.

roll-tarballs.sh: Remove even more files from nx-X11/extras/Mesa/. This roll-tarball.sh version has been used for generating the 3.5.99.8 tarball.

Attributes GH PR #470: https://github.com/ArcticaProject/nx-libs/pull/470

Fixes: ArcticaProject/nx-libs#444
Fixes: ArcticaProject/nx-libs#457

mesa-quilt: Provide a fallback patching method on systems where pulling quilt into the build env is not trivial.

 Fixes ArcticaProject/nx-libs#444.
 Fixes ArcticaProject/nx-libs#457.

nx-libs.spec: Use mesa-quilt with Fedora builds, but rely on fallback mode in mesa-quilt for RHEL and SUSE.

Attributes GH PR #471: https://github.com/ArcticaProject/nx-libs/pull/471

Fixes: ArcticaProject/nx-libs#443

nxcomp: Set TokenSize to 1536 for link type ADSL and WAN. Improving non-xrender based  browser scrolling behaviour when link type is set to ADSL or WAN.

 In the 40-ies (talking about release version numbers), Firefox started
 using the Skia library [1] for client-side rendering of browser content.

 With current versions of Firefox you can switch between libXrender based
 rendering (esp. of Fonts) and Skia based rendering:

    gfx.xrender.enabled = true|false

 Some time around Firefox 52, the default for the gfx.xrender.enabled
 setting got changed by Firefox upstream from true to false. So nowadays,
 Firefox uses Skia by default.

 However, it turns out that Skia scales really badly on remote X11
 connections. Scrolling of long web pages becomes really jolty.

 Something similar could be observed earlier already when using
 Chrome or Chromium (which also has been using Skia for some time
 now).

 This change in nxcomp works around those issues and greatly
 improves scrolling and general browser experience on medium
 throughput networks (like cable modem, ADSL, HDSPA, slow LTE).

 [1] https://en.wikipedia.org/wiki/Skia_Graphics_Engine

 Fixes ArcticaProject/nx-libs#443.

 Attributes GH PR #463: https://github.com/ArcticaProject/nx-libs/pull/463

 Reviewed by Ulrich Sibiller <uli42@gmx.de>  -- Fri, 30 Jun 2017 14:16:03 +0000 (UTC)

 In nxagent sessions, all X11 clients have a representation of their NX
 session-side window object on the real X-Server side.

 The window object gets stored in the new NX_REAL_WINDOW window property
 immediately after window creation. This mapping is created in
 nxagentCreateWindow().

 On session resumption, the client side window IDs normally change. Thus,
 during session resumption, all NX_REAL_WINDOW properties require being
 updated. This happens in nxagentReconnectWindow().

 While a session is suspended, the NX_REAL_WINDOW property does not
 exist. It gets removed during nxagentDisconnectWindow().

hw/nxagnet/Atoms.c: In DEBUG mode, we need validateString() which is not statically defined in Utils.h. Thus including it for DEBUG builds.

Attributes GH PR #453: https://github.com/ArcticaProject/nx-libs/pull/453

Fix FTBFS on Linux based HP-PARisc 32-bit systems. Thanks to John Paul Adrian Glaubitz from FU Berlin for providing access to a corresponding porters' machine.

 This partially reverts nx-libs commit f6dcf2fe. The 'hpux' stuff stays
 out, the __hppa__ gets re-introduced.

 commit 1af15aaf278edcf6f6de94774350e34a80883c24
 Author: Olivier Fourdan <ofourdan@redhat.com>
 Date:   Fri Apr 10 10:07:38 2015 +0200

    dix: Fix image byte order on big endian hardware

    Make sure X_BIG_ENDIAN/X_LITTLE_ENDIAN are defined before actually using
    them.

    Otherwise, image byte order could be wrong on big endian hardware even
    though endianess detection is correct.
Reported-by: Tim Waugh <twaugh@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>

 commit 4302484ef2e67b2e05756c7ee0834dce938f1b44
 Author: Adam Jackson <ajax@redhat.com>
 Date:   Mon Jul 21 10:06:53 2014 -0400

    dix: Remove arch awareness from servermd.h (v2)

    At this point we have no architectures where image byte order is
    different from bitmap bit order, or where either of those two are not
    also the native word endianness.  Hooray, one more place where we don't
    have to worry about enabling new CPU architectures.

    v2: Rebase to master to handle the addition of ppc64le, arc, and xtensa,
    and use autoconf's endianness detection instead of gcc predefines.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Keith Packard <keithp@keithp.com>

 commit f6469f1910c72add358b7263d69bd116b4450ece
 Author: Adam Jackson <ajax@redhat.com>
 Date:   Mon Jul 21 10:06:46 2014 -0400

    dix: Remove some XFree86 3.x leftovers
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Keith Packard <keithp@keithp.com>

 commit 5aaacb501ff26bad391664cc7367bfe5164f72c7
 Author: Adam Jackson <ajax@redhat.com>
 Date:   Mon Jul 21 10:06:45 2014 -0400

    dix: Remove an ancient IBM configuration

    Whatever unix this was meant to be is either no longer in circulation,
    or is AIX, which we don't claim to support anyway.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Keith Packard <keithp@keithp.com>

 commit 446fe9eecddd1337f9d5164dd7c301e1ba3dfe32
 Author: Daniel Stone <daniel@fooishbar.org>
 Date:   Thu Jul 17 21:37:50 2008 +0300

    Dead code removal

    Remove a whole bunch of code that was never built, be it entire files or
    just dead ifdefs.
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>