diff --git a/libraries/stdlib/common/build.gradle b/libraries/stdlib/common/build.gradle
index 3cf3e05f174..967836527f4 100644
--- a/libraries/stdlib/common/build.gradle
+++ b/libraries/stdlib/common/build.gradle
@@ -26,11 +26,18 @@ sourceSets {
             srcDir 'test'
         }
     }
+    unsigned {
+        kotlin {
+            srcDir '../unsigned/src'
+        }
+    }
 }
 
 dependencies {
     testCompile project(":kotlin-test:kotlin-test-common")
     testCompile project(":kotlin-test:kotlin-test-annotations-common")
+
+    unsignedCompile sourceSets.main.output
 }
 
 compileKotlinCommon {
@@ -47,6 +54,14 @@ compileKotlinCommon {
     }
 }
 
+compileUnsignedKotlinCommon {
+    kotlinOptions {
+        freeCompilerArgs += [
+                "-XXLanguage:+InlineClasses"
+        ]
+    }
+}
+
 
 kotlin.experimental.coroutines 'enable'
 
diff --git a/libraries/stdlib/jvm/build.gradle b/libraries/stdlib/jvm/build.gradle
index 981cb010a95..000cacc740c 100644
--- a/libraries/stdlib/jvm/build.gradle
+++ b/libraries/stdlib/jvm/build.gradle
@@ -55,6 +55,8 @@ sourceSets {
             srcDir 'java9'
         }
     }
+    unsigned {
+    }
 }
 
 configurations {
@@ -69,6 +71,8 @@ dependencies {
     compile group: 'org.jetbrains', name: 'annotations', version:'13.0'
 
     testCompile project(':kotlin-test:kotlin-test-junit')
+
+    unsignedCompile sourceSets.main.output
 }
 
 jar {
@@ -92,13 +96,21 @@ task distJar(type: Jar) {
 }
 
 task coroutinesJar(type: Jar) {
-    baseName = 'kotlin-stdlib-coroutines'
     version = null
+    classifier = 'coroutines'
     manifestAttributes(manifest, project, 'Main', true)
     project.configure(manifest) { attributes 'Kotlin-Version': '1.3' }
     from sourceSets.coroutines.output
 }
 
+task unsignedJar(type: Jar) {
+    version = null
+    classifier = 'unsigned'
+    manifestAttributes(manifest, project, 'Main', true)
+    project.configure(manifest) { attributes 'Kotlin-Version': '1.3' }
+    from sourceSets.unsigned.output
+}
+
 sourcesJar {
     from "${rootDir}/core/builtins/native"
 }
@@ -139,12 +151,13 @@ dist {
     }
 }
 
-task coroutinesDist(type: Copy) {
+task experimentalJarsDist(type: Copy) {
     from coroutinesJar
+    from unsignedJar
     into distDir
 }
 
-dist.dependsOn coroutinesDist
+dist.dependsOn experimentalJarsDist
 
 task dexMethodCount(type: DexMethodCount) {
     from jar
@@ -198,4 +211,12 @@ compileCoroutinesKotlin {
     }
 }
 
+compileUnsignedKotlin {
+    kotlinOptions {
+        freeCompilerArgs += [
+                "-XXLanguage:+InlineClasses"
+        ]
+    }
+}
+
 kotlin.experimental.coroutines 'enable'