undefined reference to `SSL_get_current_cipher\' 链接OpenSSL库 -lssl

这两天由于工作需要，换了个编译环境，以前是物理机上编译，换到虚拟机上，都是CentOS5.7版本，不知道什么地方不一样，完全相同的工程，换到虚拟机上后链接不过，报错：
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_close_free_options':
(.text+0xd1f): undefined reference to `SSL_CTX_free'
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_get_ssl_cipher':
(.text+0x10b0): undefined reference to `SSL_get_current_cipher'
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_real_connect':
(.text+0x368f): undefined reference to `SSL_get_peer_certificate'
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_real_connect':
(.text+0x36a7): undefined reference to `X509_get_subject_name'
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_real_connect':
(.text+0x36b7): undefined reference to `X509_NAME_oneline'
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_real_connect':
(.text+0x36bf): undefined reference to `X509_free'
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_get_ssl_cipher':
(.text+0x10bc): undefined reference to `SSL_CIPHER_get_name'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `report_errors':
(.text+0x3d): undefined reference to `ERR_get_error_line_data'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `ssl_do':
(.text+0x9a): undefined reference to `SSL_new'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `ssl_do':
(.text+0xaa): undefined reference to `SSL_clear'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `ssl_do':
(.text+0xb2): undefined reference to `SSL_get_session'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `ssl_do':
(.text+0xbd): undefined reference to `SSL_SESSION_set_timeout'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `ssl_do':
(.text+0xc8): undefined reference to `SSL_set_fd'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `ssl_do':
(.text+0xda): undefined reference to `SSL_get_fd'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `ssl_do':
(.text+0x140): undefined reference to `SSL_free'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `sslconnect':
(.text+0x151): undefined reference to `SSL_connect'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `sslaccept':
(.text+0x161): undefined reference to `SSL_accept'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `vio_ssl_close':
(.text+0x196): undefined reference to `SSL_set_quiet_shutdown'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `vio_ssl_close':
(.text+0x19e): undefined reference to `SSL_shutdown'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `vio_ssl_delete':
(.text+0x1dc): undefined reference to `SSL_free'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `vio_ssl_write':
(.text+0x218): undefined reference to `SSL_write'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `vio_ssl_read':
(.text+0x228): undefined reference to `SSL_read'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `report_errors':
(.text+0x3d): undefined reference to `ERR_get_error_line_data'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0xd4): undefined reference to `SSL_CTX_new'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0xf1): undefined reference to `SSL_CTX_set_cipher_list'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x10c): undefined reference to `SSL_CTX_load_verify_locations'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x12d): undefined reference to `SSL_CTX_use_certificate_file'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x14c): undefined reference to `SSL_CTX_use_PrivateKey_file'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x15c): undefined reference to `SSL_CTX_check_private_key'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x169): undefined reference to `DH_new'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x184): undefined reference to `BN_bin2bn'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x199): undefined reference to `BN_bin2bn'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x1c4): undefined reference to `SSL_CTX_ctrl'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x1cc): undefined reference to `DH_free'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x1fe): undefined reference to `SSL_library_init'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x203): undefined reference to `OPENSSL_add_all_algorithms_noconf'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x21c): undefined reference to `SSL_load_error_strings'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x22a): undefined reference to `SSL_CTX_set_default_verify_paths'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x291): undefined reference to `SSL_CTX_free'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x2e6): undefined reference to `DH_free'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x30b): undefined reference to `SSL_CTX_free'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLAcceptorFd':
(.text+0x395): undefined reference to `TLSv1_server_method'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLAcceptorFd':
(.text+0x3cc): undefined reference to `SSL_CTX_ctrl'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLAcceptorFd':
(.text+0x3db): undefined reference to `SSL_CTX_set_verify'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLAcceptorFd':
(.text+0x3eb): undefined reference to `SSL_CTX_set_session_id_context'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLConnectorFd':
(.text+0x44d): undefined reference to `TLSv1_client_method'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLConnectorFd':
(.text+0x48a): undefined reference to `SSL_CTX_set_verify'
查了下，需要链接OpenSSL库，链接参数中加上-lssl后果然链接通过了。但是将执行文件发布到测试机上后，进程启动不了，报错：
error while loading shared libraries: libssl.so.6: cannot open shared object file: No such file or directory

MySQL库等都是静态链接的，想想这个库也应该静态链接的好，否则还得依赖运行环境，而且行为也不可控。于是将libssl改为静态链接，可是怎么尝试静态链接都不行，报错：
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_real_connect':
(.text+0x36a7): undefined reference to `X509_get_subject_name'
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_real_connect':
(.text+0x36b7): undefined reference to `X509_NAME_oneline'
/usr/lib64/mysql/libmysqlclient.a(client.o): In function `mysql_real_connect':
(.text+0x36bf): undefined reference to `X509_free'
/usr/lib64/mysql/libmysqlclient.a(viossl.o): In function `report_errors':
(.text+0x3d): undefined reference to `ERR_get_error_line_data'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `report_errors':
(.text+0x3d): undefined reference to `ERR_get_error_line_data'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x169): undefined reference to `DH_new'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x184): undefined reference to `BN_bin2bn'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x199): undefined reference to `BN_bin2bn'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x1cc): undefined reference to `DH_free'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x203): undefined reference to `OPENSSL_add_all_algorithms_noconf'
/usr/lib64/mysql/libmysqlclient.a(viosslfactories.o): In function `new_VioSSLFd':
(.text+0x2e6): undefined reference to `DH_free'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_lib.o): In function `ssl_parse_serverhello_tlsext':
(.text+0x129): undefined reference to `ERR_put_error'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_lib.o): In function `ssl_parse_clienthello_tlsext':
(.text+0x27e): undefined reference to `ERR_put_error'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_lib.o): In function `ssl_add_serverhello_tlsext':
(.text+0x3b8): undefined reference to `ERR_put_error'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_lib.o): In function `ssl_add_clienthello_tlsext':
(.text+0x4f5): undefined reference to `ERR_put_error'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_enc.o): In function `tls1_P_hash':
(.text+0x132): undefined reference to `EVP_MD_size'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_enc.o): In function `tls1_P_hash':
(.text+0x13e): undefined reference to `HMAC_CTX_init'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_enc.o): In function `tls1_P_hash':
(.text+0x146): undefined reference to `HMAC_CTX_init'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_enc.o): In function `tls1_P_hash':
(.text+0x153): undefined reference to `HMAC_CTX_set_flags'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_enc.o): In function `tls1_P_hash':
(.text+0x160): undefined reference to `HMAC_CTX_set_flags'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_enc.o): In function `tls1_P_hash':
(.text+0x176): undefined reference to `HMAC_Init_ex'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_enc.o): In function `tls1_P_hash':
(.text+0x199): undefined reference to `HMAC_Init_ex'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_enc.o): In function `tls1_P_hash':
(.text+0x1b3): undefined reference to `HMAC_Update'
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libssl.a(t1_enc.o): In function `tls1_P_hash':
(.text+0x1c1): undefined reference to `HMAC_Final'
...
然后增加链接kbr5等各种库，然后又有新的各种undefined，最终也没能静态链接通过...
时间很紧迫，没有继续折腾，就发布动态链接libssl库的版本吧，决定在目标运行机上安装libssl.so.6这个库，执行：
yum -y install libssl.so.6
但纳闷的事情又发生了，明明是64位系统，但是发现yum安装的却是32位的libssl库！拷到lib64目录下，启动进程后，会报libssl.so.6格式错误！

最终时间紧迫，仍然没有找到解决方法。只好发布动态链接libssl的版本，并随发布进程一并提供libssl.so.6和libcrypto.so.6两个动态库，如果目标机器上没有这两个库，就拷到/lib64目录下。

所以遗留下了以下几个问题：
1，同是CentOS5.7的系统，都安装了开发环境，甚至装的MySQL的版本都一样，同样的项目，完全相同的Makefile文件，链接mysql库，为什么在之前的物理机上能链接过，在虚拟机就不能链接过？
2，为什么静态链接libssl链接不过？如果要链接通过，到底还需要链接哪些库？linux和gcc对确定这样的问题，有没有简便的方法？
3，在64位系统上执行yum -y install libssl.so.6安装libssl库，为什么安装的是32位版本？
      对这个问题，网上搜了下答案，如果要安装64位版的libssl.so.6和libssl.so.6，正确的是：
      yum install openssl098e-0.9.8e-18.el6_5.2.x86_64
      下面的命令可以查看库由什么安装包提供的，例如运行下面的命令可以知道libcrypto.so.6是由openssl098e-0.9.8e-18.el6_5.2.x86_64提供的：
      yum whatprovides "*/*libcrypto.so*"

这3个问题记录在这里备忘~如果您知道答案，请给我留言，不甚感激！