在Windows 10上从源代码编译libcurl 7.61.1

Question

I'm working on an existing C++ project. We include libcurl as a static library, which we build from source. I'm trying to upgrade us from version 7.38.0 to version 7.61.1.

I downloaded curl-7.61.1.zip from here: https://curl.haxx.se/download/ .

I made no modifications to the source and did not run any scripts that came with curl 7.61.1.

We have an existing VS solution we used for compiling curl 7.38.0, so I started from that and modified as needed for the new files in curl 7.61.1.

Everything compiled fine, however, when I try to link the compiled result into my project, I get the following errors:

1>libcurl.lib(schannel.obj) : error LNK2019: unresolved external symbol __imp_CertOpenStore referenced in function schannel_connect_step1
1>libcurl.lib(schannel_verify.obj) : error LNK2001: unresolved external symbol __imp_CertOpenStore
1>libcurl.lib(schannel.obj) : error LNK2019: unresolved external symbol __imp_CertCloseStore referenced in function schannel_connect_step1
1>libcurl.lib(schannel_verify.obj) : error LNK2001: unresolved external symbol __imp_CertCloseStore
1>libcurl.lib(schannel.obj) : error LNK2019: unresolved external symbol __imp_CertFindCertificateInStore referenced in function schannel_connect_step1
1>libcurl.lib(schannel.obj) : error LNK2019: unresolved external symbol __imp_CertFreeCertificateContext referenced in function pkp_pin_peer_pubkey
1>libcurl.lib(schannel_verify.obj) : error LNK2001: unresolved external symbol __imp_CertFreeCertificateContext
1>libcurl.lib(schannel.obj) : error LNK2019: unresolved external symbol  __imp_CryptStringToBinaryA referenced in function schannel_connect_step1
1>libcurl.lib(schannel_verify.obj) : error LNK2019: unresolved external symbol __imp_CertAddCertificateContextToStore referenced in function add_certs_to_store
1>libcurl.lib(schannel_verify.obj) : error LNK2019: unresolved external symbol __imp_CertGetNameStringA referenced in function verify_host
1>libcurl.lib(schannel_verify.obj) : error LNK2019: unresolved external symbol __imp_CryptQueryObject referenced in function add_certs_to_store
1>libcurl.lib(schannel_verify.obj) : error LNK2019: unresolved external symbol __imp_CertCreateCertificateChainEngine referenced in function verify_certificate
1>libcurl.lib(schannel_verify.obj) : error LNK2019: unresolved external symbol __imp_CertFreeCertificateChainEngine referenced in function verify_certificate
1>libcurl.lib(schannel_verify.obj) : error LNK2019: unresolved external symbol __imp_CertGetCertificateChain referenced in function verify_certificate
1>libcurl.lib(schannel_verify.obj) : error LNK2019: unresolved external symbol __imp_CertFreeCertificateChain referenced in function verify_certificate
1>C:\Users\CoffeeTableEspresso\project\win64-vs15\debug-mt\executable.exe : fatal error LNK1120: 12 unresolved externals

Has anyone run into similar issues before? Please let me know if I need to edit this with more info as well.

Answer 1

As Peter mentioned in a comment, I needed to link against windows libraries. In this case, linking against crypt32.lib solved the issue for me.