Brought back our ability to have non-platform specific default libraries.

Separated dist/klib libraries into common and platform parts to exclude name clash.

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/Distribution.kt

@@ -44,7 +44,7 @@ class Distribution(val targetManager: TargetManager,
     val properties = File(propertyFileName).loadProperties()
 
     val klib = "$konanHome/klib"
-    val stdlib = "$klib/stdlib"
+    val stdlib = "$klib/common/stdlib"
     val runtime = runtimeFileOverride ?: "$stdlib/targets/${targetName}/native/runtime.bc"
 
     val dependenciesDir = "$konanHome/dependencies"

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/SearchPathResolver.kt

@@ -130,10 +130,10 @@ class KonanLibrarySearchPathResolver(
         get() = localKonanDir?.File()?.klib
 
     val distHead: File?
-        get() = distributionKlib?.File()
+        get() = distributionKlib?.File()?.child("common")
 
     val distPlatformHead: File?
-        get() = targetManager?.let { distHead?.child(targetManager.targetName) }
+        get() = targetManager?.let { distributionKlib?.File()?.child("platform")?.child(targetManager.targetName) }
 
     val currentDirHead: File?
         get() = if (!skipCurrentDir) File.userDir else null
@@ -176,11 +176,13 @@ class KonanLibrarySearchPathResolver(
         get() = File(this, "klib")
 
     // The libraries from the default root are linked automatically.
-    val defaultRoot: File?
+    val defaultRoots: List<File>
-        get() = if (distPlatformHead?.exists ?: false) distPlatformHead else null
+        get() = listOf(distHead, distPlatformHead)
+                .filterNotNull()
+                .filter{ it.exists }
 
     override fun defaultLinks(nostdlib: Boolean, noDefaultLibs: Boolean): List<File> {
-        val defaultLibs = defaultRoot?.listFiles.orEmpty()
+        val defaultLibs = defaultRoots.flatMap{ it.listFiles }
             .filterNot { it.name.removeSuffixIfPresent(".klib") == "stdlib" }
             .map { File(it.absolutePath) }
         val result = mutableListOf<File>()

build.gradle

@@ -231,13 +231,15 @@ task distRuntime(type: Copy) {
     dependsOn('commonDistRuntime')
 }
 
+def stdlib = 'klib/common/stdlib'
+
 task commonDistRuntime(type: Copy) {
     destinationDir file('dist')
 
     // Target independant common part.
     from(project(':runtime').file("build/${hostName}Stdlib")) {
         include('**')
-        into('klib/stdlib')
+        into(stdlib)
     }
 }
 
@@ -260,19 +262,19 @@ targetList.each { target ->
 
         from(project(':runtime').file("build/$target")) {
             include("*.bc")
-            into("klib/stdlib/targets/$target/native")
+            into("$stdlib/targets/$target/native")
         }
         from(project(':runtime').file("build/${target}Stdlib")) {
             include('**')
-            into('klib/stdlib')
+            into(stdlib)
         }
         from(project(':runtime').file("build/${target}Start.bc")) {
             rename("${target}Start.bc", 'start.bc')
-            into("klib/stdlib/targets/$target/native")
+            into("$stdlib/targets/$target/native")
         }
         if (target == 'wasm32') {
             from(project(':runtime').file('src/launcher/js')) {
-                into('klib/stdlib/targets/wasm32/included')
+                into('$stdlib/targets/wasm32/included')
             }
         }
     }

klib/platform.gradle

@@ -20,7 +20,7 @@ konanArtifacts {
         defFile gradle.startParameter.projectProperties.defFile
         noDefaultLibs true
         libraries {
-            files libs.collect { "$konanHome/klib/$targetName/$it" }
+            files libs.collect { "$konanHome/klib/platform/$targetName/$it" }
         }
     }
 }
@@ -29,7 +29,7 @@ def suffix = gradle.startParameter.projectProperties['suffix']
 def klibProgram = suffix?"$konanHome/bin/klib.$suffix" : "$konanHome/bin/klib"
 
 task klibInstall(type:Exec) {
-    String repo = "$konanHome/klib/$targetName"
+    String repo = "$konanHome/klib/platform/$targetName"
     doFirst {
         new File(repo).mkdirs()
     }