File fix-Mesa-19.3.0-build.patch of Package VirtualGL

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File fix-Mesa-19.3.0-build.patch of Package VirtualGL

From faedcc1e36b4ed89a325e01822447900840a0b77 Mon Sep 17 00:00:00 2001
From: DRC <information@virtualgl.org>
Date: Thu, 13 Feb 2020 19:11:46 -0600
Subject: [PATCH] Faker: Fix build issue w/ Mesa 19.3.0+ headers

Mesa changed the signatures for glXGetTransparentIndexSUN() and
glXQueryGLXPbufferSGIX() to match the official GLX extension specs:
https://www.khronos.org/registry/OpenGL/extensions/SUN/GLX_SUN_get_transparent_index.txt
https://www.khronos.org/registry/OpenGL/extensions/SGIX/GLX_SGIX_pbuffer.txt

Reference:
https://gitlab.freedesktop.org/mesa/mesa/commit/3dd299c3d5b88114894ec30d1fac85fba688201f

Fixes #109
---
 ChangeLog.md         |  2 ++
 server/faker-glx.cpp | 14 +++++++++++++-
 server/faker-sym.h   |  8 +++++++-
 3 files changed, 22 insertions(+), 2 deletions(-)

Index: b/ChangeLog.md
===================================================================
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -40,6 +40,8 @@ features are, for the most part, EOL.
 
 6. `vglserver_config` now works properly with FreeBSD systems running GDM v3.
 
+2. VirtualGL can now be built using the GLX headers from Mesa 19.3.0 and later.
+
 
 2.6.2
 =====
Index: b/server/faker-glx.cpp
===================================================================
--- a/server/faker-glx.cpp
+++ b/server/faker-glx.cpp
@@ -1,6 +1,6 @@
 // Copyright (C)2004 Landmark Graphics Corporation
 // Copyright (C)2005, 2006 Sun Microsystems, Inc.
-// Copyright (C)2009, 2011-2019 D. R. Commander
+// Copyright (C)2009, 2011-2020 D. R. Commander
 //
 // This library is free software and may be redistributed and/or modified under
 // the terms of the wxWindows Library License, Version 3.1 or (at your option)
@@ -2192,11 +2192,18 @@ void glXQueryDrawable(Display *dpy, GLXD
 	CATCH();
 }
 
+#if defined(GLX_GLXEXT_VERSION) && GLX_GLXEXT_VERSION >= 20190000
+void glXQueryGLXPbufferSGIX(Display *dpy, GLXPbuffer pbuf, int attribute,
+	unsigned int *value)
+#else
 int glXQueryGLXPbufferSGIX(Display *dpy, GLXPbuffer pbuf, int attribute,
 	unsigned int *value)
+#endif
 {
 	glXQueryDrawable(dpy, pbuf, attribute, value);
+	#if !defined(GLX_GLXEXT_VERSION) || GLX_GLXEXT_VERSION < 20190000
 	return 0;
+	#endif
 }
 
 
@@ -2358,8 +2365,13 @@ void glXSwapBuffers(Display *dpy, GLXDra
 
 // Returns the transparent index from the overlay visual on the 2D X server
 
+#if defined(GLX_GLXEXT_VERSION) && GLX_GLXEXT_VERSION >= 20190000
+int glXGetTransparentIndexSUN(Display *dpy, Window overlay, Window underlay,
+	unsigned long *transparentIndex)
+#else
 int glXGetTransparentIndexSUN(Display *dpy, Window overlay, Window underlay,
 	long *transparentIndex)
+#endif
 {
 	int retval = False;
 	XWindowAttributes xwa;
Index: b/server/faker-sym.h
===================================================================
--- a/server/faker-sym.h
+++ b/server/faker-sym.h
@@ -1,6 +1,6 @@
 // Copyright (C)2004 Landmark Graphics Corporation
 // Copyright (C)2005, 2006 Sun Microsystems, Inc.
-// Copyright (C)2009, 2011, 2013-2016, 2018-2019 D. R. Commander
+// Copyright (C)2009, 2011, 2013-2016, 2018-2020 D. R. Commander
 //
 // This library is free software and may be redistributed and/or modified under
 // the terms of the wxWindows Library License, Version 3.1 or (at your option)
@@ -535,8 +535,15 @@ FUNCDEF2(GLXFBConfigSGIX, glXGetFBConfig
 
 // GLX_SUN_get_transparent_index
 
+
+#if defined(GLX_GLXEXT_VERSION) && GLX_GLXEXT_VERSION >= 20190000
+FUNCDEF4(int, glXGetTransparentIndexSUN, Display *, dpy, Window, overlay,
+       Window, underlay, unsigned long *, transparentIndex,
+       glXGetTransparentIndexSUN);
+#else
 FUNCDEF4(int, glXGetTransparentIndexSUN, Display *, dpy, Window, overlay,
 	Window, underlay, long *, transparentIndex, glXGetTransparentIndexSUN);
+#endif
 
 
 // GL functions

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