glGetProcAddress() should return SDL_FunctionPointer

src/video/qnx/gl.c

@@ -154,7 +154,7 @@ glLoadLibrary(_THIS, const char *name)
  * @param   proc    Function name
  * @return  Function address
  */
-void *
+SDL_FunctionPointer
 glGetProcAddress(_THIS, const char *proc)
 {
     return eglGetProcAddress(proc);

src/video/qnx/sdl_qnx.h

@@ -37,7 +37,7 @@ extern void handleKeyboardEvent(screen_event_t event);
 
 extern int glGetConfig(EGLConfig *pconf, int *pformat);
 extern int glLoadLibrary(_THIS, const char *name);
-void *glGetProcAddress(_THIS, const char *proc);
+extern SDL_FunctionPointer glGetProcAddress(_THIS, const char *proc);
 extern SDL_GLContext glCreateContext(_THIS, SDL_Window *window);
 extern int glSetSwapInterval(_THIS, int interval);
 extern int glSwapWindow(_THIS, SDL_Window *window);