problem with openssl 0.9.8c

I installed openssl 0.9.8c on Solais sparcv9. Then I built Apache 2.0.59 using openSSL 0.9.8c. When I start Apache, I saw errors in Apache's error log: [Thu Sep 14 14:19:44 2006] [notice] Apache/2.0.59 (Unix) mod_ssl/2.0.59 OpenSSL/0.9.8c config ured -- resuming normal operations [Thu Sep 14 14:

What's the difference between openssl 0.9.8c and 0.9.7k

I need to install openSSL so I can build Apache_2.0.59 with SSL enabled. I saw Openssl 0.9.8c and 0.9.7k were released on the same day. What's the difference between this two versions? Which one should I choose for building Apache 2? _