+#include "GL/glext.h"
+#include "glthread.h"
+
+
+struct _glapi_table;
+
+typedef void (*_glapi_proc)(void); /* generic function pointer */
+
+typedef void (*_glapi_warning_func)(void *ctx, const char *str, ...);
+
+
+#if defined(USE_MGL_NAMESPACE)
+#define _glapi_set_dispatch _mglapi_set_dispatch
+#define _glapi_get_dispatch _mglapi_get_dispatch
+#define _glapi_set_context _mglapi_set_context
+#define _glapi_get_context _mglapi_get_context
+#define _glapi_Context _mglapi_Context
+#define _glapi_Dispatch _mglapi_Dispatch
+#endif
+
+
+/*
+ * Number of extension functions which we can dynamically add at runtime.
+ */
+#define MAX_EXTENSION_FUNCS 300
+
+
+/**
+ ** Define the GET_CURRENT_CONTEXT() macro.
+ ** \param C local variable which will hold the current context.
+ **/
+#if defined (GLX_USE_TLS)
+
+const extern void *_glapi_Context;
+const extern struct _glapi_table *_glapi_Dispatch;
+
+extern __thread void * _glapi_tls_Context
+ __attribute__((tls_model("initial-exec")));
+
+# define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _glapi_tls_Context
+
+#else
+
+extern void *_glapi_Context;
+extern struct _glapi_table *_glapi_Dispatch;
+
+# ifdef THREADS
+# define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) (_glapi_Context ? _glapi_Context : _glapi_get_context())
+# else
+# define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _glapi_Context
+# endif
+
+#endif /* defined (GLX_USE_TLS) */
+
+
+/**
+ ** GL API public functions
+ **/
+
+extern void
+_glapi_noop_enable_warnings(GLboolean enable);
+
+extern void
+_glapi_set_warning_func(_glapi_warning_func func);
+
+extern void
+_glapi_check_multithread(void);
+
+
+extern void
+_glapi_set_context(void *context);
+
+
+extern void *
+_glapi_get_context(void);