diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/commonMain/kotlin/LibCommonMain.kt b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/commonMain/kotlin/LibCommonMain.kt
index 898f682462f..71e560d0e85 100755
--- a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/commonMain/kotlin/LibCommonMain.kt
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/commonMain/kotlin/LibCommonMain.kt
@@ -11,6 +11,8 @@ fun libCommonMainTopLevelFun(): Int {
     return 2
 }
 
+fun libCommonMainInternalFun() = Unit
+
 fun main() {
     
 }
\ No newline at end of file
diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/jvmAndJsMain/kotlin/LibJvmAndJsMain.kt b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/jvmAndJsMain/kotlin/LibJvmAndJsMain.kt
index 7b9211a8006..8be19c239db 100755
--- a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/jvmAndJsMain/kotlin/LibJvmAndJsMain.kt
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/jvmAndJsMain/kotlin/LibJvmAndJsMain.kt
@@ -4,6 +4,7 @@ actual class LibCommonMainExpect : LibCommonMainIface {
     actual fun libCommonMainExpectFun(): Unit {
         println("actualized in jvmAndJsMain")
         libCommonMainTopLevelFun()
+        libCommonMainInternalFun()
     }
 
     fun additionalFunInJvmAndJsActual() {
diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/jvmMain/kotlin/LibJvmMain.kt b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/jvmMain/kotlin/LibJvmMain.kt
index 8f4481fd409..d3dcf626cac 100755
--- a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/jvmMain/kotlin/LibJvmMain.kt
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/jvmMain/kotlin/LibJvmMain.kt
@@ -2,4 +2,5 @@ package com.h0tk3y.hmpp.klib.demo
 
 fun main() {
     libCommonMainTopLevelFun()
+    libCommonMainInternalFun()
 }
\ No newline at end of file
diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/linuxMain/kotlin/LibLinuxMain.kt b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/linuxMain/kotlin/LibLinuxMain.kt
index 4f8ad838a4d..372a5b21461 100755
--- a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/linuxMain/kotlin/LibLinuxMain.kt
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/common-klib-lib-and-app/src/linuxMain/kotlin/LibLinuxMain.kt
@@ -12,6 +12,7 @@ actual class LibCommonMainExpect : LibCommonMainIface {
         println("actualized in iosMain")
         libCommonMainTopLevelFun()
         println(CArrayPointer::class)
+        libCommonMainInternalFun()
     }
 
     fun additionalFunInLinuxActual() {
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/KotlinCommonCompilation.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/KotlinCommonCompilation.kt
index 928c499c1b9..23aba0ade5c 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/KotlinCommonCompilation.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/KotlinCommonCompilation.kt
@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.gradle.plugin.mpp
 
+import org.gradle.api.file.FileCollection
 import org.jetbrains.kotlin.gradle.dsl.KotlinCommonOptions
 import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformCommonOptions
 import org.jetbrains.kotlin.gradle.dsl.kotlinExtension
@@ -12,6 +13,7 @@ import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation
 import org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet
 import org.jetbrains.kotlin.gradle.plugin.KotlinTarget
 import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider
+import org.jetbrains.kotlin.gradle.plugin.sources.getVisibleSourceSetsFromAssociateCompilations
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompileCommon
 
 interface KotlinMetadataCompilation<T : KotlinCommonOptions> : KotlinCompilation<T>
@@ -27,4 +29,11 @@ class KotlinCommonCompilation(
         get() = PropertiesProvider(target.project).enableGranularSourceSetsMetadata == true && !forceCompilationToKotlinMetadata
 
     internal var forceCompilationToKotlinMetadata: Boolean = false
+
+    override val friendArtifacts: FileCollection
+        get() = super.friendArtifacts.plus(run {
+            val project = target.project
+            val friendSourceSets = getVisibleSourceSetsFromAssociateCompilations(target.project, defaultSourceSet)
+            project.files(friendSourceSets.mapNotNull { target.compilations.findByName(it.name)?.output?.classesDirs })
+        })
 }
\ No newline at end of file
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/native/KotlinNativeCompilation.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/native/KotlinNativeCompilation.kt
index 8fbf801b57a..3073364eec7 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/native/KotlinNativeCompilation.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/native/KotlinNativeCompilation.kt
@@ -11,6 +11,7 @@ import org.gradle.api.Action
 import org.gradle.api.NamedDomainObjectContainer
 import org.gradle.api.Project
 import org.gradle.api.file.ConfigurableFileCollection
+import org.gradle.api.file.FileCollection
 import org.gradle.api.file.SourceDirectorySet
 import org.gradle.util.ConfigureUtil
 import org.jetbrains.kotlin.gradle.dsl.KotlinCommonOptions
@@ -18,6 +19,8 @@ import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation
 import org.jetbrains.kotlin.gradle.plugin.KotlinCompilationWithResources
 import org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet
 import org.jetbrains.kotlin.gradle.plugin.KotlinTarget
+import org.jetbrains.kotlin.gradle.plugin.sources.getSourceSetHierarchy
+import org.jetbrains.kotlin.gradle.plugin.sources.getVisibleSourceSetsFromAssociateCompilations
 import org.jetbrains.kotlin.gradle.tasks.KotlinNativeCompile
 import org.jetbrains.kotlin.gradle.utils.SingleWarningPerBuild
 import org.jetbrains.kotlin.gradle.utils.lowerCamelCaseName
@@ -96,4 +99,17 @@ class KotlinNativeCompilation(
 
 class KotlinSharedNativeCompilation(override val target: KotlinMetadataTarget, name: String) :
     AbstractKotlinNativeCompilation(target, HostManager.host, name),
-    KotlinMetadataCompilation<KotlinCommonOptions>
\ No newline at end of file
+    KotlinMetadataCompilation<KotlinCommonOptions> {
+
+    override val friendArtifacts: FileCollection
+        get() = super.friendArtifacts.plus(run {
+            val project = target.project
+            val friendSourceSets = getVisibleSourceSetsFromAssociateCompilations(project, defaultSourceSet).toMutableSet().apply {
+                // TODO: implement proper dependsOn/refines compiler args for Kotlin/Native and pass the dependsOn klibs separately;
+                //       But for now, those dependencies don't have any special semantics, so passing all them as friends works, too
+                addAll(defaultSourceSet.getSourceSetHierarchy())
+                remove(defaultSourceSet)
+            }
+            project.files(friendSourceSets.mapNotNull { target.compilations.findByName(it.name)?.output?.classesDirs })
+        })
+}
\ No newline at end of file
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/KotlinCompileCommon.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/KotlinCompileCommon.kt
index aa1127302b4..47cd8f76873 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/KotlinCompileCommon.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/KotlinCompileCommon.kt
@@ -18,6 +18,9 @@ package org.jetbrains.kotlin.gradle.tasks
 
 import org.gradle.api.Project
 import org.gradle.api.tasks.CacheableTask
+import org.gradle.api.tasks.InputFiles
+import org.gradle.api.tasks.PathSensitive
+import org.gradle.api.tasks.PathSensitivity
 import org.jetbrains.kotlin.cli.common.arguments.K2MetadataCompilerArguments
 import org.jetbrains.kotlin.compilerRunner.GradleCompilerEnvironment
 import org.jetbrains.kotlin.compilerRunner.OutputItemsCollectorImpl
@@ -27,8 +30,10 @@ import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformCommonOptionsImpl
 import org.jetbrains.kotlin.gradle.dsl.fillDefaultValues
 import org.jetbrains.kotlin.gradle.internal.tasks.allOutputFiles
 import org.jetbrains.kotlin.gradle.logging.GradlePrintingMessageCollector
+import org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinCommonCompilation
-import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinMetadataCompilation
+import org.jetbrains.kotlin.gradle.utils.getValue
+import org.jetbrains.kotlin.gradle.plugin.sources.getSourceSetHierarchy
 import org.jetbrains.kotlin.incremental.ChangedFiles
 import java.io.File
 
@@ -65,11 +70,30 @@ open class KotlinCompileCommon : AbstractKotlinCompile<K2MetadataCompilerArgumen
         with(args) {
             classpath = classpathList.joinToString(File.pathSeparator)
             destination = destinationDir.canonicalPath
+
+            friendPaths = this@KotlinCompileCommon.friendPaths
+            refinesPaths = refinesMetadataPaths.map { it.absolutePath }.toTypedArray()
         }
 
         kotlinOptionsImpl.updateArguments(args)
     }
 
+    private fun outputPathsFromMetadataCompilationsOf(sourceSets: Iterable<KotlinSourceSet>): List<File> {
+        val target = taskData.compilation.target
+        return sourceSets
+            .mapNotNull { sourceSet -> target.compilations.findByName(sourceSet.name)?.output?.classesDirs }
+            .flatten()
+    }
+
+    private val defaultKotlinSourceSet: KotlinSourceSet
+        get() = taskData.compilation.defaultSourceSet
+
+    @get:PathSensitive(PathSensitivity.RELATIVE)
+    @get:InputFiles
+    internal val refinesMetadataPaths by project.provider {
+        outputPathsFromMetadataCompilationsOf(defaultKotlinSourceSet.getSourceSetHierarchy().minus(defaultKotlinSourceSet))
+    }
+
     override fun callCompilerAsync(args: K2MetadataCompilerArguments, sourceRoots: SourceRoots, changedFiles: ChangedFiles) {
         val messageCollector = GradlePrintingMessageCollector(logger)
         val outputItemCollector = OutputItemsCollectorImpl()