Hi, I am trying to compile squid-3.3.0.1 (latest release on 20 Oct 2012) with these configure options, "--enable-icap-client --enable-ssl --enable-ssl-crtd". I am building it on RHEL6.2 (64 bit), with GCC version as 4.4.6-3.el6 and openssl version as 1.0.0-20.el6. I am getting the following error on my system. certificate_db.cc: In member function ‘void Ssl::CertificateDb::load()’: certificate_db.cc:393: error: ‘index_serial_hash_LHASH_HASH’ was not declared in this scope certificate_db.cc:393: error: ‘index_serial_cmp_LHASH_COMP’ was not declared in this scope certificate_db.cc:396: error: ‘index_name_hash_LHASH_HASH’ was not declared in this scope certificate_db.cc:396: error: ‘index_name_cmp_LHASH_COMP’ was not declared in this scope certificate_db.cc: In member function ‘void Ssl::CertificateDb::deleteRow(const char**, int)’: certificate_db.cc:428: error: cannot convert ‘stack_st_OPENSSL_PSTRING*’ to ‘_STACK*’ for argument ‘1’ to ‘void* sk_delete(_STACK*, int)’ certificate_db.cc:437: error: ‘LHASH’ was not declared in this scope certificate_db.cc:437: error: ‘fieldIndex’ was not declared in this scope certificate_db.cc: In member function ‘bool Ssl::CertificateDb::deleteInvalidCertificate()’: certificate_db.cc:458: error: cannot convert ‘stack_st_OPENSSL_PSTRING*’ to ‘const _STACK*’ for argument ‘1’ to ‘int sk_num(const _STACK*)’ certificate_db.cc:459: error: cannot convert ‘stack_st_OPENSSL_PSTRING*’ to ‘const _STACK*’ for argument ‘1’ to ‘void* sk_value(const _STACK*, int)’ certificate_db.cc: In member function ‘bool Ssl::CertificateDb::deleteOldestCertificate()’: certificate_db.cc:482: error: cannot convert ‘stack_st_OPENSSL_PSTRING*’ to ‘const _STACK*’ for argument ‘1’ to ‘int sk_num(const _STACK*)’ certificate_db.cc:489: error: cannot convert ‘stack_st_OPENSSL_PSTRING*’ to ‘const _STACK*’ for argument ‘1’ to ‘void* sk_value(const _STACK*, int)’ certificate_db.cc: In member function ‘bool Ssl::CertificateDb::deleteByHostname(const std::string&)’: certificate_db.cc:506: error: cannot convert ‘stack_st_OPENSSL_PSTRING*’ to ‘const _STACK*’ for argument ‘1’ to ‘int sk_num(const _STACK*)’ certificate_db.cc:507: error: cannot convert ‘stack_st_OPENSSL_PSTRING*’ to ‘const _STACK*’ for argument ‘1’ to ‘void* sk_value(const _STACK*, int)’ make[3]: *** [certificate_db.o] Error 1 A similar error has been reported on the user group (http://www.squid-cache.org/mail-archive/squid-users/201202/0057.html) but I am not sure if the suggested patch will work for my configuration (http://www.squid-cache.org/mail-archive/squid-users/201202/0062.html). Any suggestions are appreciated. Thanks, Shree