SDL程序编译错误-error: conflicting types for ‘_XData32’

Make the following changes in src/video/x11/SDL_x11sym.h at around line 168

    /*

• Not required…these only exist in code in headers on some 64-bit
platforms,
• and are removed via macros elsewhere, so it’s safe for them to be missing.
*/
#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

CFLAGS=-DSDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32 ./configure --prefix=/tools/SDL1