Hi, all I am trying to upgrade my Openssl for Apache httpd to the latest version v1.0.1c on RHEL v6.2 (64 bit). Openssl compiled and installed no problem. I then tried to configure httpd v2.2.22 and got error message: checking for library containing crypt... -lcrypt checking for getpwnam... yes checking for getgrnam... yes checking for initgroups... yes checking for bindprocessor... no checking for prctl... yes checking for timegm... yes checking for getpgid... yes checking for void pointer length... no checking for tm_gmtoff in struct tm... yes checking whether to enable mod_authn_file... shared (all) checking whether to enable mod_authn_dbm... shared (all) checking whether to enable mod_authn_anon... shared (all) checking whether to enable mod_authn_dbd... shared (all) checking whether to enable mod_authn_default... shared (all) checking whether to enable mod_authn_alias... no checking whether to enable mod_authz_host... shared (all) checking whether to enable mod_authz_groupfile... shared (all) checking whether to enable mod_authz_user... shared (all) checking whether to enable mod_authz_dbm... shared (all) checking whether to enable mod_authz_owner... shared (all) checking whether to enable mod_authnz_ldap... checking dependencies checking whether to enable mod_authnz_ldap... shared (all) checking whether to enable mod_authz_default... shared (all) checking whether to enable mod_auth_basic... shared (all) checking whether to enable mod_auth_digest... checking dependencies checking whether to enable mod_auth_digest... shared (all) checking whether to enable mod_isapi... no checking whether to enable mod_file_cache... no checking whether to enable mod_cache... no checking whether to enable mod_disk_cache... no checking whether to enable mod_mem_cache... no checking whether to enable mod_dbd... shared (all) checking whether to enable mod_bucketeer... no checking whether to enable mod_dumpio... shared (all) checking whether to enable mod_echo... no checking whether to enable mod_example... no checking whether to enable mod_case_filter... no checking whether to enable mod_case_filter_in... no checking whether to enable mod_reqtimeout... shared (all) checking whether to enable mod_ext_filter... shared (all) checking whether to enable mod_include... shared (all) checking whether to enable mod_filter... shared (all) checking whether to enable mod_substitute... shared (all) checking whether to enable mod_charset_lite... no checking whether to enable mod_deflate... checking dependencies checking for zlib location... /usr adding "-lz" to LIBS checking for zlib library... found forcing MOD_DEFLATE_LDADD to "-lz" removed "-lz" from LIBS checking whether to enable mod_deflate... shared (all) checking whether to enable mod_ldap... checking dependencies checking whether to enable mod_ldap... shared (all) checking whether to enable mod_log_config... shared (all) checking whether to enable mod_log_forensic... shared (all) adding "-I$(top_builddir)/server" to INCLUDES checking whether to enable mod_logio... shared (all) checking whether to enable mod_env... shared (all) checking whether to enable mod_mime_magic... shared (all) checking whether to enable mod_cern_meta... shared (all) checking whether to enable mod_expires... shared (all) checking whether to enable mod_headers... shared (all) checking whether to enable mod_ident... shared (all) checking whether to enable mod_usertrack... checking dependencies checking sys/times.h usability... yes checking sys/times.h presence... yes checking for sys/times.h... yes checking for times... yes checking whether to enable mod_usertrack... shared (all) checking whether to enable mod_unique_id... shared (all) checking whether to enable mod_setenvif... shared (all) checking whether to enable mod_version... shared (all) checking whether to enable mod_proxy... shared (all) checking whether to enable mod_proxy_connect... shared (all) checking whether to enable mod_proxy_ftp... shared (all) checking whether to enable mod_proxy_http... shared (all) checking whether to enable mod_proxy_scgi... shared (all) checking whether to enable mod_proxy_ajp... shared (all) checking whether to enable mod_proxy_balancer... shared (all) adding "-I$(top_srcdir)/modules/proxy/../generators" to INCLUDES checking whether to enable mod_ssl... checking dependencies checking for SSL/TLS toolkit base... /usr/local/ssl-1.0.1c adding "-I/usr/local/ssl-1.0.1c/include" to CPPFLAGS adding "-I/usr/local/ssl-1.0.1c/include" to INCLUDES adding "-L/usr/local/ssl-1.0.1c/lib" to LDFLAGS checking for OpenSSL version... checking openssl/opensslv.h usability... yes checking openssl/opensslv.h presence... yes checking for openssl/opensslv.h... yes checking openssl/ssl.h usability... yes checking openssl/ssl.h presence... yes checking for openssl/ssl.h... yes OK forcing SSL_LIBS to "-lssl -lcrypto " adding "-lssl" to LIBS adding "-lcrypto" to LIBS checking openssl/engine.h usability... yes checking openssl/engine.h presence... yes checking for openssl/engine.h... yes checking for SSLeay_version... yes checking for SSL_CTX_new... no checking for ENGINE_init... no checking for ENGINE_load_builtin_engines... no checking for SSL_set_cert_store... no configure: error: ... Error, SSL/TLS libraries were missing or unusable # I tried with openssl v1.0.0j and "configure" stopped at the same place with the same message. I then tried openssl v1.0.0g and httpd comipled successfully. Do anyone know why? The "configure" command has the same options for different version of openssl. Thanks. Ryan Jiang This message (including any attachments) is intended solely for the specific individual(s) or entity(ies) named above, and may contain legally privileged and confidential information. If you are not the intended recipient, please notify the sender immediately by replying to this message and then delete it. Any disclosure, copying, or distribution of this message, or the taking of any action based on it, by other than the intended recipient, is strictly prohibited. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx