How to use static library and module map file with Swift?

I’m trying to include a 3rd party static library in my Swift project. I have these two files, among a few others.

GoogleConversionTrackingSDK/ACTReporter.h
GoogleConversionTrackingSDK/libGoogleConversionTracking.a

I added the .a file to the target’s “Linked Frameworks and Library” section. I then created a module.map file in my project, like this:

module GoogleConversionTracking {
    header "../../Libs/GoogleConversionTrackingSDK/ACTReporter.h"    
    export *
}

And in Swift files I can now refer to it:

import GoogleConversionTracking

But I get an error at link time:

ld: library not found for -lGoogleConversionTracking
clang: error: linker command failed with exit code 1 (use -v to see invocation)
note: library not found for -lGoogleConversionTracking

How do you fix this? I would like to not use a bridging header, but instead use these module definition files, if possible.