ubuntu 10.4.3在安装vsftpd

系统:ubuntu11.10桌面
编译完成apache2.2.21
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sudo ./configure --prefix=/usr/local/apache2 --with-apr=/usr/local/apr-httpd/bin/apr-1-config --with-apr-util=/usr/local/apr-httpd/bin/apu-1-config --with-included-apr --with-zlib=/usr/local/zlib/ --with-pcre=/usr/local/pcre8/ --enable-ssl --enable-module=so --enable-mods-shared=all --enable-modules=all --enable-cache --enable-file-cache --enable-mem-cache --enable-disk-cache --enable-static-support --enable-static-htpasswd --enable-static-htdigest --enable-static-rotatelogs --enable-static-logresolve --enable-static-htdbm --enable-static-ab --enable-static-checkgid --enable-mod_cgi --enable-deflate=shared --enable-expires=shared --enable-rewrite=shared --enable-authn-dbm=shared --enable-rewrite=shared --enable-speling=shared --enable-headers --enable-proxy --enable-proxy-connect --enable-proxy-ftp --enable-proxy-http --enable-proxy-scgi --enable-proxy-ajp --enable-proxy-balancer --enable-optional-hook-export --enable-optional-hook-import --enable-so
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查看安装目录中modules中已经存在：mod_ssl.so
并且已经把生成的2个证书放到conf目录中
可是运行:sudo /usr/local/apache2/bin/apachectl start就出现：
httpd: Syntax error on line 99 of /usr/local/apache2/conf/httpd.conf: Cannot load /usr/local/apache2/modules/mod_ssl.so into server: /usr/local/apache2/modules/mod_ssl.so: undefined symbol: SSLv2_client_method
请问大家有没有遇到这种错误，有经验的好朋友请帮助解决。非常感谢。