diff -up irrlicht-1.8.1/source/Irrlicht/COpenGLExtensionHandler.h.mesa10 irrlicht-1.8.1/source/Irrlicht/COpenGLExtensionHandler.h

--- irrlicht-1.8.1/source/Irrlicht/COpenGLExtensionHandler.h.mesa10	2013-12-13 23:05:43.208343706 -0500

+++ irrlicht-1.8.1/source/Irrlicht/COpenGLExtensionHandler.h	2013-12-13 23:05:43.213343691 -0500

@@ -59,6 +59,9 @@

 	#endif

 	#include <GL/gl.h>

 	#include <GL/glx.h>

+        #ifndef PFNGLBLENDEQUATIONPROC 

+         typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC) (GLenum mode);

+        #endif

 	#if defined(_IRR_OPENGL_USE_EXTPOINTER_)

 	#include <GL/glext.h>

 	 typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE2DPROC) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *data);

diff -up irrlicht-1.8.1/source/Irrlicht/glxext.h.mesa10 irrlicht-1.8.1/source/Irrlicht/glxext.h

--- irrlicht-1.8.1/source/Irrlicht/glxext.h.mesa10	2013-12-30 12:18:38.368368241 -0500

+++ irrlicht-1.8.1/source/Irrlicht/glxext.h	2013-12-30 12:18:54.305386790 -0500

@@ -44,6 +44,9 @@ extern "C" {

 #ifndef GLAPI

 #define GLAPI extern

 #endif

+#ifndef GLXContextID

+#define GLXContextID XID

+#endif

 /*************************************************************/