关于ubuntu-server:Ubuntu编译生成libevent库

配置
2.1 ./configure --prefix=/usr/lib/libevent
报错如下

configure: error: openssl is a must but can not be found. You should add the directory containing `openssl.pc' to the `PKG_CONFIG_PATH' environment variable, or set `CFLAGS' and `LDFLAGS' directly for openssl, or use `--disable-openssl' to disable support for openssl encryption

2.2 解决办法：
须要配置环境变量PKG_CONFIG_PATH为openssl.pc的门路，Ubuntu曾经装了openssl，然而找不到openssl.pc，起因是没有装置 libssl-dev。
输出命令： sudo apt install -y libssl-dev 后装置后能够找到openssl.pc的门路：/usr/lib/x86_64-linux-gnu/pkgconfig/openssl.pc

2.3 配置环境变量PKG_CONFIG_PATH后，2.1的命令能够执行胜利