I was trying to install hiphop-php, and while compiling curl, ran accross this issue
../lib/.libs/libcurl.so: undefined reference to `SSLv2_client_method'

So I went over to github and fixed my file. Their new file is here
https://github.com/bagder/curl/blob/26b487a5d6ed9da5bc8e4a134a88d3125884b852/lib/ssluse.c

So if you edit your own file, around line 1457, you will see a line that looks like this(github line 1461):
case CURL_SSLVERSION_SSLv2:
....
break;

Change your case/break statement to only contain what is in the following snippet

#ifdef USE_TLS_SRP
if (data->set.ssl.authtype == CURL_TLSAUTH_SRP)
return CURLE_SSL_CONNECT_ERROR;
#endif
#ifdef OPENSSL_NO_SSL2
failf(data, "openSSL was compiled without SSLv2 support");
return CURLE_SSL_CONNECT_ERROR;
#endif
req_method = SSLv2_client_method();
use_sni(FALSE);

Shazam! Good luck curling!