--- a/configure.in Wed Apr 17 00:56:53 2013 -0700 +++ a/configure.in Sun Jun 02 20:48:53 2013 +0600 @@ -1169,6 +1169,17 @@ if test x$definitely_enable_video_x11_xrandr = xyes; then AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR) fi + AC_MSG_CHECKING(for const parameter to _XData32) + have_const_param_xdata32=no + AC_TRY_COMPILE([ + #include + extern int _XData32(Display *dpy,register _Xconst long *data,unsigned len); + ],[ + ],[ + have_const_param_xdata32=yes + AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32) + ]) + AC_MSG_RESULT($have_const_param_xdata32) fi fi } --- a/include/SDL_config.h.in Wed Apr 17 00:56:53 2013 -0700 +++ a/include/SDL_config.h.in Sun Jun 02 20:48:53 2013 +0600 @@ -283,6 +283,7 @@ #undef SDL_VIDEO_DRIVER_WINDIB #undef SDL_VIDEO_DRIVER_WSCONS #undef SDL_VIDEO_DRIVER_X11 +#undef SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32 #undef SDL_VIDEO_DRIVER_X11_DGAMOUSE #undef SDL_VIDEO_DRIVER_X11_DYNAMIC #undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT --- a/src/video/x11/SDL_x11sym.h Wed Apr 17 00:56:53 2013 -0700 +++ a/src/video/x11/SDL_x11sym.h Sun Jun 02 20:48:53 2013 +0600 @@ -165,7 +165,11 @@ */ #ifdef LONG64 SDL_X11_MODULE(IO_32BIT) +#if SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32 +SDL_X11_SYM(int,_XData32,(Display *dpy,register _Xconst long *data,unsigned len),(dpy,data,len),return) +#else SDL_X11_SYM(int,_XData32,(Display *dpy,register long *data,unsigned len),(dpy,data,len),return) +#endif SDL_X11_SYM(void,_XRead32,(Display *dpy,register long *data,long len),(dpy,data,len),) #endif