diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt
index 00cafbb78e1..5460a405179 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt
@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.backend.konan.library.SplitLibraryReader
 import org.jetbrains.kotlin.backend.konan.util.profile
 import org.jetbrains.kotlin.config.CommonConfigurationKeys
 import org.jetbrains.kotlin.config.CompilerConfiguration
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.impl.ModuleDescriptorImpl
 import java.io.File
 
@@ -44,20 +45,24 @@ class KonanConfig(val project: Project, val configuration: CompilerConfiguration
 
     internal val libraries: List<KonanLibraryReader> by lazy {
         // Here we have chosen a particular KonanLibraryReader implementation
-        libraryNames.map{it -> SplitLibraryReader(it, configuration)}
+        val currentAbiVersion = configuration.get(KonanConfigKeys.ABI_VERSION)!!
+        val target = targetManager.currentName
+        libraryNames.map{it -> SplitLibraryReader(it, currentAbiVersion, target)}
     }
 
     private val loadedDescriptors = loadLibMetadata()
 
-    internal val nativeLibraries: List<String> = configuration.getList(KonanConfigKeys.NATIVE_LIBRARY_FILES)
+    internal val nativeLibraries: List<String> = 
+        configuration.getList(KonanConfigKeys.NATIVE_LIBRARY_FILES)
 
     fun loadLibMetadata(): List<ModuleDescriptorImpl> {
 
         val allMetadata = mutableListOf<ModuleDescriptorImpl>()
+        val specifics = configuration.get(CommonConfigurationKeys.LANGUAGE_VERSION_SETTINGS)!!
 
         for (klib in libraries) {
             profile("Loading ${klib.libraryName}") {
-                val moduleDescriptor = klib.moduleDescriptor
+                val moduleDescriptor = klib.moduleDescriptor(specifics)
                 allMetadata.add(moduleDescriptor)
             }
         }
diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/KonanLibrary.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/KonanLibrary.kt
index 7b93a3ee61a..ff2714e8908 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/KonanLibrary.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/KonanLibrary.kt
@@ -26,26 +26,24 @@ import org.jetbrains.kotlin.backend.konan.util.File
 import org.jetbrains.kotlin.backend.konan.util.copyTo
 import org.jetbrains.kotlin.backend.konan.util.unzipAs
 import org.jetbrains.kotlin.backend.konan.util.zipDirAs
-import org.jetbrains.kotlin.config.CompilerConfiguration
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.impl.ModuleDescriptorImpl
 
 interface KonanLibraryReader {
     val libraryName: String
     val moduleName: String
-    val moduleDescriptor: ModuleDescriptorImpl
     val bitcodePaths: List<String>
+    fun moduleDescriptor(specifics: LanguageVersionSettings): ModuleDescriptorImpl
 }
 
-abstract class FileBasedLibraryReader(
-    val file: File, 
-    val configuration: CompilerConfiguration, 
+abstract open class FileBasedLibraryReader(
+    val file: File, val currentAbiVersion: Int,
     val reader: MetadataReader): KonanLibraryReader {
 
     override val libraryName: String
         get() = file.path
 
-    protected val namedModuleData by lazy {
-        val currentAbiVersion = configuration.get(KonanConfigKeys.ABI_VERSION)!!
+    protected val namedModuleData: NamedModuleData by lazy {
         reader.loadSerializedModule(currentAbiVersion)
     }
 
@@ -58,11 +56,9 @@ abstract class FileBasedLibraryReader(
     protected fun packageMetadata(fqName: String): Base64 =
         reader.loadSerializedPackageFragment(fqName)
 
-    override val moduleDescriptor: ModuleDescriptorImpl by lazy {
-        deserializeModule(configuration, 
-            {it -> packageMetadata(it)}, 
+    override fun moduleDescriptor(specifics: LanguageVersionSettings) 
+        = deserializeModule(specifics, {packageMetadata(it)}, 
             tableOfContentsAsString, moduleName)
-    }
 }
 
 // This scheme describes the Konan Library (klib) layout.
@@ -91,14 +87,13 @@ interface SplitScheme {
         = File(linkdataDir, if (packageName == "") "<root>" else packageName)
 }
 
-// TODO: Get rid of the configuration here.
-class SplitLibraryReader(override val libDir: File, configuration: CompilerConfiguration) 
-    : FileBasedLibraryReader(libDir, configuration, SplitMetadataReader(libDir)), 
+class SplitLibraryReader(override val libDir: File, currentAbiVersion: Int,
+        override val target: String) : 
+      FileBasedLibraryReader(libDir, currentAbiVersion, SplitMetadataReader(libDir)), 
       SplitScheme  {
 
-    public constructor(path: String, configuration: CompilerConfiguration) : this(File(path), configuration) 
-
-    override val target: String? = TargetManager(configuration).currentName
+    public constructor(path: String, currentAbiVersion: Int, target: String) : 
+        this(File(path), currentAbiVersion, target) 
 
     init {
         unpackIfNeeded()
@@ -149,10 +144,11 @@ abstract class FileBasedLibraryWriter (
     val file: File): KonanLibraryWriter {
 }
 
-class SplitLibraryWriter(override val libDir: File, override val target: String?, val nopack: Boolean = false): 
-    FileBasedLibraryWriter(libDir), SplitScheme {
+class SplitLibraryWriter(override val libDir: File, override val target: String?, 
+    val nopack: Boolean = false): FileBasedLibraryWriter(libDir), SplitScheme {
 
-    public constructor(path: String, target: String, nopack: Boolean): this(File(path), target, nopack)
+    public constructor(path: String, target: String, nopack: Boolean): 
+        this(File(path), target, nopack)
 
     // TODO: Experiment with separate bitcode files.
     // Per package or per class.
diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/KtBcLibrary.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/KtBcLibrary.kt
index 2c1883d2875..03787f87f28 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/KtBcLibrary.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/KtBcLibrary.kt
@@ -26,13 +26,13 @@ import org.jetbrains.kotlin.backend.konan.util.File
 import org.jetbrains.kotlin.backend.konan.util.copyTo
 import org.jetbrains.kotlin.backend.konan.util.unzipAs
 import org.jetbrains.kotlin.backend.konan.util.zipDirAs
-import org.jetbrains.kotlin.config.CompilerConfiguration
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.impl.ModuleDescriptorImpl
 
-class KtBcLibraryReader(file: File, configuration: CompilerConfiguration) 
-    : FileBasedLibraryReader(file, configuration, KtBcMetadataReader(file)) {
+class KtBcLibraryReader(file: File, currentAbiVersion: Int) 
+    : FileBasedLibraryReader(file, currentAbiVersion, KtBcMetadataReader(file)) {
 
-    public constructor(path: String, configuration: CompilerConfiguration) : this(File(path), configuration) 
+    public constructor(path: String, currentAbiVersion: Int) : this(File(path), currentAbiVersion) 
 
     override val bitcodePaths: List<String>
         get() = listOf(libraryName)
diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanSerializationUtil.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanSerializationUtil.kt
index 098faabdae9..a8bf61bde80 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanSerializationUtil.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanSerializationUtil.kt
@@ -24,6 +24,8 @@ import org.jetbrains.kotlin.backend.konan.llvm.base64Decode
 import org.jetbrains.kotlin.backend.konan.llvm.base64Encode
 import org.jetbrains.kotlin.backend.konan.llvm.isExported
 import org.jetbrains.kotlin.config.CompilerConfiguration
+import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.config.languageVersionSettings
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.impl.LocalVariableDescriptor
@@ -127,7 +129,7 @@ internal fun deserializePackageFragment(base64: Base64): KonanLinkData.PackageFr
             KonanSerializerProtocol.extensionRegistry)
 }
 
-internal fun deserializeModule(configuration: CompilerConfiguration, 
+internal fun deserializeModule(languageVersionSettings: LanguageVersionSettings,
     packageLoader:(String)->Base64, library: Base64,  moduleName: String): ModuleDescriptorImpl {
 
     val storageManager = LockBasedStorageManager()
@@ -135,7 +137,7 @@ internal fun deserializeModule(configuration: CompilerConfiguration,
     val moduleDescriptor = ModuleDescriptorImpl(
             Name.special(moduleName), storageManager, builtIns)
     builtIns.builtInsModule = moduleDescriptor
-    val deserializationConfiguration = CompilerDeserializationConfiguration(configuration.languageVersionSettings)
+    val deserializationConfiguration = CompilerDeserializationConfiguration(languageVersionSettings)
 
     val libraryProto = KonanLinkData.Library
         .parseFrom(base64ToStream(library),