Apache Installation with SSL: no OpenSSL headers found

If you get above error that means apache was not able to find the opensssl C header files for compiling withs SSL. First of all make sure you have OpenSSL installed on your machine, if not please install it. If you openssl installation is not at standard location then use --with-ssl=/path/to/your/openssl option with apache configuration.

My openssl was in /usr/local/ssl, which seemed to be standard location, but it Apache did not recognize it, I guess because it expects it in /usr/local/openssl. Anyways following worked for
./Configure --enable-ssl --with-ssl=/usr/local/ssl/