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>

Attributes GH PR #454: https://github.com/ArcticaProject/nx-libs/pull/454

nx-X11/config/cf/linux.cf: Drop AsOutputArchSize macro from Sparc(64)Architecture ifdef-block. It does not seem to be used anywhere else.

Mesa.patches: Have Mesa.patches_6.4.2 rather as a copy than as a symlink to Mesa.patches_6.4.1. Rebase 4004_define-USE_IEEE-macro-for-more-platforms.patch against Mesa 6.4.2 while being at it.

Attributes GH PR #469: https://github.com/ArcticaProject/nx-libs/pull/469

git-subtree-dir: nx-X11/extras/Mesa_6.4.2
git-subtree-split: 475b1f7b56fa36ef4f3b22a749f88a98ddc0d502

roll-tarball.sh: Fix tarball creation, now that we pull in Mesa as a git-subtree. This basically moves versioned folders around and drops the Mesa/ and Mesa.patches/ symlinks.

Attributes GH PR #467: https://github.com/ArcticaProject/nx-libs/pull/467

roll-tarball.sh: Drop various unused files from the bundled Mesa version when creating release tarballs.

nx-X11/extras/Mesa: Drop bundled Mesa, place a symlink to imported Git subtree of Mesa_6.4.1 instead.

git-subtree-dir: nx-X11/extras/Mesa_6.4.1
git-subtree-split: 53d1bc081eb633aecbd5ab0bf3981f734a2102f2

Attributes GH PR #466: https://github.com/ArcticaProject/nx-libs/pull/466

This fixes ArcticaProject/nx-libs#465

Attributes GH PR #456: https://github.com/ArcticaProject/nx-libs/pull/456

Attributes GH PR #464: https://github.com/ArcticaProject/nx-libs/pull/464

When installing nxcompshad, directory user and group ownership were
forced to be root. That precluded installations by non-root users.

Now, they are not forced.

When descending subdirectories and calling configure pass
`--prefix=${DESTDIR}${PREFIX}`, so that installing in a
custom directory works.

Attributes GH PR #461: https://github.com/ArcticaProject/nx-libs/pull/461

nx-X11/config/cf/gnuLib.rules: Drop ancient Vcs comment. Erroneously sneaked in with reintroduction of GNU/<non-Linux> support.

Attributes GH PR #447: https://github.com/ArcticaProject/nx-libs/pull/447

Fixes: ArcticaProject/nx-libs#282

Address FTBFS issues on GNU/Hurd and GNU/kFreeBSD

nxcompshad/Shadow.cpp: Use EBADF instead of EBADFD (which is not portable to GNU/Hurd and GNU/kFreeBSD).

 We use the error code (and its underlying message for
 generating log errors and their textual messages. So,
 in theory, we could use any error code here. Thus,
 choosing the once closest to EBADFD while being
 portable to non-Linux systems.

We need that function for performance reasons. By removing
_X_DEPRECATED we get rid of compiler warnings.

Attributes GH PR #452: https://github.com/ArcticaProject/nx-libs/pull/452

Revert "Switch from using libNX_X11's deprecated XKeycodeToKeysym() function to using XGetKeyboardMapping()."

This reverts commit efc0dae0.

Recent test revealed keyboard hangs on high latency connections. These
hangs are not happening in 3.5.0 releases if the nx-libs.

The commit above is responsible for them so we take that back.

Interestingly nxcomp has special treatment for XGetKeyboardMapping()
so it should normally speed up things but it results in the opposite
for us. Needs further examination.

This fixes ArcticaProject/nx-libs#450