https://issues.dlang.org/show_bug.cgi?id=20690

          Issue ID: 20690
           Summary: Static LibCurl
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: phobos
          Assignee: nobody@puremagic.com
          Reporter: svnpenn@gmail.com

It seems it is not current possible to statically link LibCurl. I compiled my own:

~~~
git clone --depth 1 git://github.com/curl/curl
cd curl
mingw32-make -C lib -f Makefile.m32
~~~

but it fails with `std.net.curl`:

~~~
$ cat std_net_curl.d
import std.net.curl;
void main() {
   auto s1 = "http://speedtest.lax.hivelocity.net";
   s1.get;
}

$ ldc2 std_net_curl.d wldap32.lib libcurl.lib
$ ./std_net_curl

std.net.curl.CurlException@std\net\curl.d(4223): Failed to load curl, tried
"libcurl.dll", "curl.dll".
~~~

and it fails with `etc.c.curl`:

~~~
$ cat etc_c_curl.d
import etc.c.curl;
void main() {
   curl_easy_init();
}

$ ldc2 etc_c_curl.d wldap32.lib libcurl.lib
lld-link: error: libcurl.lib(easy.o): invalid symbol index in addrsig section
~~~

looking at the code, it seems the problem is here:

~~~
alias loadSym = GetProcAddress;
~~~

<https://github.com/dlang/phobos/blob/d5dc0115/std/net/curl.d#L4194>

I am not an expert, but I think `GetProcAddress` is for working with DLL, not static libraries:

<https://docs.microsoft.com/windows/win32/api/libloaderapi/nf-libloaderapi-getprocaddress>

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