From bd2650ca0b17c8a8fc2bc278a998e10893d8147c Mon Sep 17 00:00:00 2001
From: Ulrich Sibiller <uli42@gmx.de>
Date: Wed, 29 Jun 2016 21:44:08 +0200
Subject: Port _XEatDataWords

This required for successful linking of libXrender against libNX_X11.

Port from libXfixes commit b031e3b60fa1af9e49449f23d4a84395868be3ab We
need this here to enable linking of current libXrender against
libNX_X11 instead of the system's libX11

The original implementation of this function (libX11 commit
9f5d83706543696fc944c1835a403938c06f2cc5) uses xcb stuff which we do
not have in libNX_X11. So we take a workaround from another lib. This
workaround had been added temporarily to a couple of X extension libs,
see
e.g. https://lists.x.org/archives/xorg-devel/2013-July/036763.html.
---
 nx-X11/lib/X11/XlibInt.c | 24 ++++++++++++++++++++++++
 nx-X11/lib/X11/Xlibint.h |  4 ++++
 2 files changed, 28 insertions(+)

(limited to 'nx-X11/lib/X11')

diff --git a/nx-X11/lib/X11/XlibInt.c b/nx-X11/lib/X11/XlibInt.c
index 64028d723..175f5b92f 100644
--- a/nx-X11/lib/X11/XlibInt.c
+++ b/nx-X11/lib/X11/XlibInt.c
@@ -2751,6 +2751,30 @@ void _XEatData(
 #undef SCRATCHSIZE
 }
 
+/*
+   Port from libXfixes commit
+   b031e3b60fa1af9e49449f23d4a84395868be3ab We need this here to
+   enable linking of current libXrender against libNX_X11 instead of
+   the system's libX11
+
+   The original implementation of this function (libX11 commit
+   9f5d83706543696fc944c1835a403938c06f2cc5) uses xcb stuff which we
+   do not have in libNX_X11. So we take a workaround from another
+   lib. This workaround had been implemented temporarily in a couple
+   of X libs, see e.g. https://lists.x.org/archives/xorg-devel/2013-July/036763.html.
+*/
+#include <X11/Xmd.h>  /* for LONG64 on 64-bit platforms */
+#include <limits.h>
+
+void _XEatDataWords(Display *dpy, unsigned long n)
+{
+#ifndef LONG64
+    if (n >= (ULONG_MAX >> 2))
+        _XIOError(dpy);
+#endif
+    _XEatData (dpy, n << 2);
+}
+
 
 /*
  * _XEnq - Place event packets on the display's queue.
diff --git a/nx-X11/lib/X11/Xlibint.h b/nx-X11/lib/X11/Xlibint.h
index a359efca1..ca3d28004 100644
--- a/nx-X11/lib/X11/Xlibint.h
+++ b/nx-X11/lib/X11/Xlibint.h
@@ -879,6 +879,10 @@ extern void _XEatData(
     Display*		/* dpy */,
     unsigned long	/* n */
 );
+extern void _XEatDataWords(
+    Display*            /* dpy */,
+    unsigned long       /* n */
+);
 extern char *_XAllocScratch(
     Display*		/* dpy */,
     unsigned long	/* nbytes */
-- 
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