Checking for OpenSSL-0.9.6j or 0.9.7b or newer... You have OpenSSL-0.9.8c installed in /usr That's is newer than what this module was tested with (0.9.6j or 0.9.7b). You should consider checking if there is a newer release of this module available. Everything will probably work OK, though. *** Could not figure out which C compiler was used to compile /usr/bin/openssl. It is essentiall that OpenSSL, perl, and Net::SSLeay are compiled with the same compiler and flags. Mixing and matching compilers is not supported. at Makefile.PL line 140.