openwrt编译错误问题

magic886

   ret_val = syscall (SYS_renameat2, fd1, src, fd2, dst, flags);
                      ^
renameat2.c:81:22: note: each undeclared identifier is reported only once for each function it appears in
make[7]: *** [renameat2.o] Error 1
make[7]: Leaving directory `/home/qq/lede/build_dir/host/patch-2.7.6/lib'
make[6]: *** [all] Error 2
make[6]: Leaving directory `/home/qq/lede/build_dir/host/patch-2.7.6/lib'
make[5]: *** [all-recursive] Error 1
make[5]: Leaving directory `/home/qq/lede/build_dir/host/patch-2.7.6'
make[4]: *** [all] Error 2
make[4]: Leaving directory `/home/qq/lede/build_dir/host/patch-2.7.6'
make[3]: *** [/home/qq/lede/build_dir/host/patch-2.7.6/.built] Error 2
make[3]: Leaving directory `/home/qq/lede/tools/patch'
time: tools/patch/compile#38.94#11.83#114.98
make[2]: *** [tools/patch/compile] Error 2
make[2]: Leaving directory `/home/qq/lede'
make[1]: *** [/home/qq/lede/staging_dir/target-mipsel_24kc_musl/stamp/.tools_compile_yynyyyyynyyyyynyynnyyyyynyyyyyyyyyyyyyyynnyynynnyyynnyy] Error 2
make[1]: Leaving directory `/home/qq/lede'
make: *** [world] 错误 2