Fix problems when building against X.Org 6.8.1 GL.

PR:		ports/75073
Submitted by:	maintainer

games/tenebrae/files/patch-glquake.h

@@ -0,0 +1,49 @@
+
+$FreeBSD$
+
+--- glquake.h.orig
++++ glquake.h
+@@ -419,8 +419,8 @@
+ void R_TranslatePlayerSkin (int playernum);
+ void GL_Bind (int texnum);
+ 
+-#ifndef _WIN32
+-#define APIENTRY /* */
++#ifndef APIENTRY
++#define APIENTRY
+ #endif
+ 
+ #if !defined (__APPLE__) && !defined (MACOSX)
+@@ -470,6 +470,9 @@
+ // ARB_texture_compression defines
+ #define GL_COMPRESSED_RGBA_ARB                0x84EE
+ 
++#ifndef GL_ATI_separate_stencil
++#define GL_ATI_separate_stencil 1
++
+ #define GL_STENCIL_BACK_FUNC_ATI                    0x8800
+ #define GL_STENCIL_BACK_FAIL_ATI                    0x8801
+ #define GL_STENCIL_BACK_PASS_DEPTH_FAIL_ATI         0x8802
+@@ -478,6 +481,8 @@
+ typedef void (APIENTRY *PFNGLSTENCILOPSEPARATEATIPROC)(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
+ typedef void (APIENTRY *PFNGLSTENCILFUNCSEPARATEATIPROC)(GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask);
+ 
++#endif
++
+ extern PFNGLSTENCILOPSEPARATEATIPROC qglStencilOpSeparateATI;
+ extern PFNGLSTENCILFUNCSEPARATEATIPROC qglStencilFuncSeparateATI;
+ 
+@@ -1134,8 +1139,13 @@
+ // <AWE> There are some diffs with the function parameters. wgl stuff not present with MacOS X. -DC- and SDL 
+ #if defined (__APPLE__) || defined (MACOSX) || defined(SDL) || defined (__glx__)
+ 
++#ifndef GL_APPLE_vertex_array_range
++#define GL_APPLE_vertex_array_range 1
++
+ typedef void (APIENTRY * PFNGLFLUSHVERTEXARRAYRANGEAPPLEPROC) (GLsizei length, const GLvoid *pointer);
+ typedef void (APIENTRY * PFNGLVERTEXARRAYRANGEAPPLEPROC) (GLsizei size, const GLvoid *pointer);
++
++#endif
+ 
+ extern PFNGLFLUSHVERTEXARRAYRANGEAPPLEPROC qglFlushVertexArrayRangeAPPLE;
+ extern PFNGLVERTEXARRAYRANGEAPPLEPROC qglVertexArrayRangeAPPLE;