Go ZeroMQ: Linker problem when trying to build in VS Code on Windows

In short, I want to do the following thing: Use https://github.com/pebbe/zmq4 and run a simple example, like hello world in VS Code on Windows. When building, I get these kinds of errors

<Windows Homedir>/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: $WORK\b299\_x008.o: in function `zmq4_bind':
<GOPATH>/pkg/mod/github.com/pebbe/zmq4@v1.2.9/wrappers_windows.go:27: undefined reference to `__imp_zmq_bind'

What I did so far:

Install Visual Studio, since it was required by vcpkg install
Install libzmq using vcpkg.exe install libzmq:x64-windows (default is 32 bit installation, which I did first by mistake. I hope there is no leftover from this somewhere that's causing problems.)
Set the required Go environment variables in VS Code Terminal (PowerShell). After some trying, it seemed to me that this has to be done like this:

go env -w CGO_CFLAGS='-I <Windows Homedir>\vcpkg\installed\x64-windows\include'
go env -w CGO_LDFLAGS='-LD:<Windows Homedir>\vcpkg\installed\x64-windows\lib -L:libzmq-mt-4_3_4.lib'

Install TDM-GCC
Add <Windows Homedir>\TDM-GCC-64\bin, <Windows Homedir>\vcpkg\installed\x64-windows\lib and <Windows Homedir>\vcpkg\installed\x64-windows\include to %Path% environment variable

I'm using Go version go1.18.4 windows/amd64 and VS Code 1.74.1 on Windows 10 Enterprise.

I have no clue what to try next, so any hints are very much appreciated.

Solution

I was using a wrong a wrong syntax for the linker flags. https://github.com/pebbe/zmq4 has lead me on a wrong track. It should be CGO_LDFLAGS='-L <Windows Homedir>/vcpkg/installed/x64-windows/lib -l libzmq-mt-4_3_4'