Include PKCS5_PBKDF2_HMAC() for compatibility with OpenSSL <1.0.0
Include PKCS5_PBKDF2_HMAC() for compatibility with OpenSSL <1.0.0

fantomgs/vanitygen,sobakasu/vanitygen,enlighter/vanitygen,luke-jr/vanitygen,Instigo/vanitygen,kangaderoo/vanitygen,WyseNynja/vanitygen,Cremator/vanitygen,kangaderoo/vanitygen,bither/vanitygen,WyseNynja/vanitygen,isghe/vanitygen,Stoner19/NEOS-vanitygen,Cremator/vanitygen,clovermebitcoin/test,bespike/vanitygen,samr7/vanitygen,shinohai/vanitygen,enlighter/vanitygen,kangaderoo/vanitygen,dooglus/vanitygen,colindean/vanitygen,sobakasu/vanitygen,dooglus/vanitygen,Gamecredits-Universe/vanitygen-gamecredits,sobakasu/vanitygen,inuitwallet/vanitygen,clovermebitcoin/test