func getFlags()

in Sources/TSCUtility/PkgConfig.swift [180:205]
21 lines of code
3 McCabe index (conditional complexity)

        func getFlags(from dependencies: [String]) throws -> (cFlags: [String], libs: [String]) {
            var cFlags = [String]()
            var libs = [String]()
            
            for dep in dependencies {
                if let index = loadingContext.pkgConfigStack.firstIndex(of: dep) {
                    diagnostics.emit(warning: "circular dependency detected while parsing \(loadingContext.pkgConfigStack[0]): \(loadingContext.pkgConfigStack[index..<loadingContext.pkgConfigStack.count].joined(separator: " -> ")) -> \(dep)")
                    continue
                }

                // FIXME: This is wasteful, we should be caching the PkgConfig result.
                let pkg = try PkgConfig(
                    name: dep,
                    additionalSearchPaths: additionalSearchPaths,
                    diagnostics: diagnostics,
                    fileSystem: fileSystem,
                    brewPrefix: brewPrefix,
                    loadingContext: loadingContext
                )

                cFlags += pkg.cFlags
                libs += pkg.libs
            }

            return (cFlags: cFlags, libs: libs)
        }