Configuration: error:!! OpenSSL is not properly installed on your system

Project scenario:

In Linux system, use the command to decompress and install the keepalived source package.


Problem Description:

To install the keepalived source code package, you have run the following command:

tar -xzvf keepalived-2.2.2.tar.gz
cd keepalived-2.2.2
./configure --prefix=/usr/local/keepalived
yum -y install gcc
./configure --prefix=/usr/local/keepalived

The third command run result error, has been solved (solution), in the fifth line to re run the command error, the error message is:

configure: error:
  !!! OpenSSL is not properly installed on your system. !!!
  !!! Can not include OpenSSL headers files.   

Cause analysis:

The main reason for this error is the lack of header files. You only need to install OpenSSL and OpenSSL devel.


Solution:

To install OpenSSL and OpenSSL devel:

yum -y install openssl openssl-devel

Rerun the command ./configure -- prefix =/usr/local/kept , the command runs normally, and the problem is solved.

If there are other errors, please refer to:
configure: error: no acceptable C compiler found in $path error resolution
warning - this build will not support IPVS with IPv6

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