错误一：安装nginx报错“src/os/unix/ngx_user.c:26:7: error: ‘struct crypt_data’ has no member named ‘current_salt’”

“src/os/unix/ngx_user.c:26:7: error: ‘struct crypt_data’ has no member named ‘current_salt’”

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• vim src/os/unix/ngx_user.c

1. 如果没有改下面错误二的“-Werror”，先把按照错误二改好
2. 试运行make或者sudo make install
3. 如果依然报错，就进去报错目录下，打开指定的报错文件，将报错行注释
   

错误二：

src/core/ngx_murmurhash.c:37:11: error: this statement may fall through [-Werror=implicit-fallthrough=]
         h ^= data[2] << 16;
         ~~^~~~~~~~~~~~~~~~
src/core/ngx_murmurhash.c:38:5: note: here
     case 2:
     ^~~~
src/core/ngx_murmurhash.c:39:11: error: this statement may fall through [-Werror=implicit-fallthrough=]
         h ^= data[1] << 8;
         ~~^~~~~~~~~~~~~~~
src/core/ngx_murmurhash.c:40:5: note: here

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原因：将警告当成错误处理

解决错误1：进入到nginx-1.10.3目录下（即解压的目录）

找到当前目录下找到objs文件夹，并进入，打开文件Makefile,找到有一下内容的这行：

CFLAGS =  -pipe  -O -W -Wall -Wpointer-arith -Wno-unused-parameter -Werror -g

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cd objs

vim Makefile

把这行内容中的 “-Werror”去掉

-Werror: gcc将所有的警告当成错误进行处理