报错:
src/core/ngx_murmurhash.c: In function ‘ngx_murmur_hash2’:
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
case 1:
^~~~
原因,是将警告当成了错误处理,打开/home/vagrant/nginx-1.11.2/objs/Makefile,
去掉CFLAGS中的-Werror
再重新make
-Wall 表示打开gcc的所有警告
-Werror,它要求gcc将所有的警告当成错误进行处理
本文解决在编译Nginx时遇到的MurmurHash函数中隐式贯穿错误的问题,通过调整编译选项,具体为移除CFLAGS中的-Werror标志,避免将警告误认为错误,成功完成编译。
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