hdr,sys	dlfcn,dl,ldr,dll
hdr	dlldefs
lib	dlopen,shl_load,loadbind,dllload,dllfind
cat{
	#if !defined(SHOPT_FS_3D) && ( _lib_dllfind || _lib_dlopen || _lib_shl_load || _lib_loadbind )
	#   define SHOPT_FS_3D	1
	#endif /* !SHOPT_FS_3D */
	#if SHOPT_FS_3D
	#   undef mount
	#   include	<fs3d.h>
	#endif /* SHOPT_FS_3D */
}end