@ToBeFixedForConfigurationCache
    def "variant-dependent sources are included in test binary"() {
        given:
        app.library.headerFiles*.writeToDir(file("src/hello"))
        app.cunitTests.writeSources(file("src/helloTest"))
        app.library.sourceFiles*.writeToDir(file("src/variant"))

        when:
        buildFile << """
model {
    components {
        hello(NativeLibrarySpec) { l ->

    }

    @ToBeFixedForConfigurationCache
    def "can manually define C source sets"() {
        given:
        helloWorldApp.library.headerFiles.each { it.writeToDir(file("src/shared")) }

        file("src/main/c/main.c") << helloWorldApp.mainSource.content
        file("src/main/c2/hello.c") << helloWorldApp.librarySources[0].content