package/x11r7/xserver_xorg-server: fix arm glibc-2.30 compile

Fixes:

  In file included from lnx_init.c:33:
  ../../../../hw/xfree86/common/compiler.h:767:10: fatal error: sys/io.h: No such file or directory
   #include <sys/io.h>
          ^~~~~~~~~~
  compilation terminated.

The ARM sys/io.h has been removed from upstream glibc, which is in
buildroot. This causes the xorg-server build to fail on ARM when using
the glibc toolchain. See [1], [2].

The following patches ([3], [4]) from upstream xserver fix this, but
have not yet been released.

[1] https://sourceware.org/glibc/wiki/Release/2.30#A.3Csys.2BAC8-io.h.3E_removed_on_32-bit_Arm
[2] https://gitlab.freedesktop.org/xorg/xserver/issues/840
[3] https://gitlab.freedesktop.org/xorg/xserver/commit/6a2ce6c5da9456b97683db6224f38ef3b02cce4b
[4] https://gitlab.freedesktop.org/xorg/xserver/commit/fe4cd0e7f5c58fa94db36326aadc1bd4e6d73eba

Signed-off-by: Thomas Preston <thomas.preston@codethink.co.uk>
Reviewed-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 3b0795207390ec0f904e3ece28a0633200a907d6)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/x11r7/xserver_xorg-server/1.20.5/0006-compiler.h-only-use-inx-outx-on-ARM-with-glibc.patch

@@ -0,0 +1,34 @@
+From 6a2ce6c5da9456b97683db6224f38ef3b02cce4b Mon Sep 17 00:00:00 2001
+From: Ross Burton <ross.burton@intel.com>
+Date: Thu, 20 Sep 2018 13:21:34 +0100
+Subject: [PATCH] compiler.h: only use inx/outx on ARM with glibc
+
+musl only implements inx/outx on x86, so check for __GLIBC__ instead of
+__linux__.
+
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+[Upstream: https://gitlab.freedesktop.org/xorg/xserver/commit/6a2ce6c5da9456b97683db6224f38ef3b02cce4b.patch]
+Signed-off-by: Thomas Preston <thomas.preston@codethink.co.uk>
+---
+ hw/xfree86/common/compiler.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/hw/xfree86/common/compiler.h b/hw/xfree86/common/compiler.h
+index 7144c6a27..fb53ced80 100644
+--- a/hw/xfree86/common/compiler.h
++++ b/hw/xfree86/common/compiler.h
+@@ -758,9 +758,9 @@ inl(unsigned short port)
+     return xf86ReadMmio32Le((void *) ioBase, port);
+ }
+ 
+-#elif defined(__arm__) && defined(__linux__)
++#elif defined(__arm__) && defined(__GLIBC__)
+ 
+-/* for Linux on ARM, we use the LIBC inx/outx routines */
++/* for glibc on ARM, we use the LIBC inx/outx routines */
+ /* note that the appropriate setup via "ioperm" needs to be done */
+ /*  *before* any inx/outx is done. */
+ 
+-- 
+2.23.0
+

package/x11r7/xserver_xorg-server/1.20.5/0007-compiler.h-Do-not-include-sys-io.h-on-ARM-with-glibc.patch

@@ -0,0 +1,62 @@
+From fe4cd0e7f5c58fa94db36326aadc1bd4e6d73eba Mon Sep 17 00:00:00 2001
+From: Olivier Fourdan <ofourdan@redhat.com>
+Date: Mon, 1 Jul 2019 13:20:39 +0200
+Subject: [PATCH] compiler.h: Do not include sys/io.h on ARM with glibc
+
+<sys/io.h> on ARM hasn't worked for a long, long time, so it was removed
+it from glibc upstream.
+
+Remove the include to avoid a compilation failure on ARM with glibc.
+
+Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
+Closes: https://gitlab.freedesktop.org/xorg/xserver/issues/840
+[Upstream: https://gitlab.freedesktop.org/xorg/xserver/commit/fe4cd0e7f5c58fa94db36326aadc1bd4e6d73eba.patch]
+Signed-off-by: Thomas Preston <thomas.preston@codethink.co.uk>
+---
+ hw/xfree86/common/compiler.h | 30 ------------------------------
+ 1 file changed, 30 deletions(-)
+
+diff --git a/hw/xfree86/common/compiler.h b/hw/xfree86/common/compiler.h
+index fb53ced80..2b2008b3f 100644
+--- a/hw/xfree86/common/compiler.h
++++ b/hw/xfree86/common/compiler.h
+@@ -758,36 +758,6 @@ inl(unsigned short port)
+     return xf86ReadMmio32Le((void *) ioBase, port);
+ }
+ 
+-#elif defined(__arm__) && defined(__GLIBC__)
+-
+-/* for glibc on ARM, we use the LIBC inx/outx routines */
+-/* note that the appropriate setup via "ioperm" needs to be done */
+-/*  *before* any inx/outx is done. */
+-
+-#include <sys/io.h>
+-
+-static __inline__ void
+-xf_outb(unsigned short port, unsigned char val)
+-{
+-    outb(val, port);
+-}
+-
+-static __inline__ void
+-xf_outw(unsigned short port, unsigned short val)
+-{
+-    outw(val, port);
+-}
+-
+-static __inline__ void
+-xf_outl(unsigned short port, unsigned int val)
+-{
+-    outl(val, port);
+-}
+-
+-#define outb xf_outb
+-#define outw xf_outw
+-#define outl xf_outl
+-
+ #elif defined(__nds32__)
+ 
+ /*
+-- 
+2.23.0
+