Easier adding library project as dependency

GRADLE_PLUGIN.md

@@ -233,6 +233,12 @@ For this project the task graph will be the following:
 
              // *.klib library for linking.
              library project.file('path/to/library')
+             
+             // library project
+             library project(':lib')
+             
+             // artifect in a library project
+             library(project(':lib'), 'artifectName')
 
              // naitve library for linking.
              nativeLibrary project.file('path/to/native/library/')

tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KonanCompileTask.kt

@@ -204,6 +204,27 @@ open class KonanCompileConfig(
 
     // DSL. Libraries.
 
+    fun library(project: Project) {
+        this.project.evaluationDependsOn(project.path)
+        project.konanArtifactsContainer.asSequence()
+                .map { it.compilationTask }
+                .filter { it.produce == "library" }
+                .forEach {
+                    compilationTask.dependsOn(it)
+                    library(it.artifact)
+                }
+    }
+
+    fun library(project: Project, artifactName: String) {
+        this.project.evaluationDependsOn(project.path)
+        val libraryCompilationTask = project.konanArtifactsContainer.getByName(artifactName).compilationTask
+        if (libraryCompilationTask.produce != "library") {
+            throw IllegalArgumentException("Artifact is not a library: $artifactName (in project: ${project.path})")
+        }
+        compilationTask.dependsOn(libraryCompilationTask)
+        library(libraryCompilationTask.artifact)
+    }
+
     fun library(lib: Any) = libraries(lib)
     fun libraries(vararg libs: Any) = with(compilationTask) {
         libraries.add(project.files(*libs))