安装nginx发生的错误之未使用变量

安装nginx发生的异常之未使用变量
问题：

src/core/ngx_resolver.c: In function 鈥榥gx_resolver_process_ptr鈥src/core/ngx_resolver.c:1425:43: error: variable 鈥榪class鈥set but not used [-Werror=unused-but-set-variable]src/core/ngx_resolver.c:1425:36: error: variable 鈥榪type鈥set but not used [-Werror=unused-but-set-variable]cc1: all warnings being treated as errors