使用 OpenSSL 构建 LibCurl 会导致链接器错误

Posted 2023-04-14

【中文标题】使用 OpenSSL 构建 LibCurl 会导致链接器错误

【英文标题】：Building LibCurl with OpenSSL causes linker errors

【发布时间】：2011-05-14 20:39:45

【问题描述】：

我已经尝试构建支持 SSL 的 LibCurl 2 天了，我已经关注了互联网上的所有指南，并且在谷歌上搜索了几个小时的错误。我终于让它编译得很好，但是当我链接到它时，我得到了下面列出的链接器错误。

我正在构建...

nmake -f Makefile.vc9 OPENSSL_PATH=c:\dev_mms\openSSL RTLIBCFG=static CFG=release-ssl

以下错误，当我用谷歌搜索时，他们说 OpenSSL 库没有正确链接，但我查看了 Makefile.vc9，它肯定包含 OpenSSL 的正确库。以下是链接器错误（我删除了大约 50 个只是为了缩短它），我可以做些什么来解决这些错误？

1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _RAND_status referenced in function _rand_enough
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _RAND_file_name referenced in function _ossl_seed
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _RAND_load_file referenced in function _ossl_seed
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _SSL_CTX_check_private_key referenced in function _cert_stuff
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _SSL_free referenced in function _cert_stuff
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _BN_num_bits referenced in function _get_cert_chain
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _X509_get_serialNumber referenced in function _get_cert_chain
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _ASN1_INTEGER_get referenced in function _get_cert_chain
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _X509_get_issuer_name referenced in function _get_cert_chain
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _SSL_get_peer_cert_chain referenced in function _get_cert_chain
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _X509_verify_cert_error_string referenced in function _servercert
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _SSL_get_verify_result referenced in function _servercert
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _X509_check_issued referenced in function _servercert
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _PEM_read_X509 referenced in function _servercert
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _X509_free referenced in function _servercert
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _SSL_get_peer_certificate referenced in function _servercert
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _SSL_get1_session referenced in function _ossl_connect_step3
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _SSL_pending referenced in function _Curl_ossl_data_pending
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _SSL_write referenced in function _ossl_send
1>libcurl.lib(ssluse.obj) : error LNK2019: unresolved external symbol _SSLeay referenced in function _Curl_ossl_version
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _DES_set_key referenced in function _setup_des_key
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _DES_set_odd_parity referenced in function _setup_des_key
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _DES_ecb_encrypt referenced in function _lm_resp
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _MD4_Final referenced in function _mk_nt_hash
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _MD4_Update referenced in function _mk_nt_hash
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _MD4_Init referenced in function _mk_nt_hash
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _MD5_Final referenced in function _Curl_output_ntlm
1>libcurl.lib(md5.obj) : error LNK2001: unresolved external symbol _MD5_Final
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _MD5_Update referenced in function _Curl_output_ntlm
1>libcurl.lib(md5.obj) : error LNK2001: unresolved external symbol _MD5_Update
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _MD5_Init referenced in function _Curl_output_ntlm
1>libcurl.lib(md5.obj) : error LNK2001: unresolved external symbol _MD5_Init
1>libcurl.lib(http_ntlm.obj) : error LNK2019: unresolved external symbol _RAND_bytes referenced in function _Curl_output_ntlm

【参考方案1】：

你需要添加

 libeay32.lib ssleay32.lib

到项目配置中的其他依赖项。

【参考方案2】：

我已按照问题 197444 (building libcurl with ssl support on windows) 的回答中的说明进行操作，效果就像一场梦。

试一试，告诉我进展如何。