问题描述：

在安装Nginx输入make指令时报
src/os/unix/ngx_user.c: In function ‘ngx_libc_crypt’:
src/os/unix/ngx_user.c:36:7: error: ‘struct crypt_data’ has no member named ‘current_salt’
cd .current_salt[0] = ~salt[0];
^
src/http/ngx_http_script.c: In function ‘ngx_http_script_add_copy_code’:
src/http/ngx_http_script.c:698:18: error:cast between incompatible function types from ‘size_t (*)(ngx_http_script_engine_t )’ {aka ‘long unsigned int ()(struct )’} to ‘void ()(ngx_http_script_engine_t )’ {aka ‘void ()(struct *)’} [-Werror=cast-function-type]
code->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
^

解决过程

注意这里的nginx目录是自己具体安装目录

注释掉报错代码

vim /opt/nginx-1.12.2/src/os/unix/ngx_user.c 

去掉-Werror

vim /opt/nginx-1.12.2/objs/Makefile

再重新make && make install 即可