diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/ContextUtils.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/ContextUtils.kt
index 5acba6c28e6..80e54052050 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/ContextUtils.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/ContextUtils.kt
@@ -502,6 +502,9 @@ internal class Llvm(val context: Context, val llvmModule: LLVMModuleRef) {
     val Kotlin_ObjCExport_createContinuationArgument by lazyRtFunction
     val Kotlin_ObjCExport_resumeContinuation by lazyRtFunction
 
+    private val Kotlin_ObjCExport_NSIntegerTypeProvider by lazyRtFunction
+    private val Kotlin_longTypeProvider by lazyRtFunction
+
     val Kotlin_mm_safePointFunctionEpilogue by lazyRtFunction
     val Kotlin_mm_safePointWhileLoopBody by lazyRtFunction
     val Kotlin_mm_safePointExceptionUnwind by lazyRtFunction
@@ -593,6 +596,26 @@ internal class Llvm(val context: Context, val llvmModule: LLVMModuleRef) {
     val llvmFloat = floatType
     val llvmDouble = doubleType
     val llvmVector128 = vector128Type
+
+    private fun getSizeOfReturnTypeInBits(functionPointer: LLVMValueRef): Long {
+        // LLVMGetElementType is called because we need to dereference a pointer to function.
+        val nsIntegerType = LLVMGetReturnType(LLVMGetElementType(functionPointer.type))
+        return LLVMSizeOfTypeInBits(runtime.targetData, nsIntegerType)
+    }
+
+    /**
+     * Width of NSInteger in bits.
+     */
+    val nsIntegerTypeWidth: Long by lazy {
+        getSizeOfReturnTypeInBits(Kotlin_ObjCExport_NSIntegerTypeProvider)
+    }
+
+    /**
+     * Width of C long type in bits.
+     */
+    val longTypeWidth: Long by lazy {
+        getSizeOfReturnTypeInBits(Kotlin_longTypeProvider)
+    }
 }
 
 class IrStaticInitializer(val konanLibrary: KotlinLibrary?, val initializer: LLVMValueRef)
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objcexport/BlockPointerSupport.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objcexport/BlockPointerSupport.kt
index 0ca13e435dc..96064e047ca 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objcexport/BlockPointerSupport.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objcexport/BlockPointerSupport.kt
@@ -194,7 +194,11 @@ internal class BlockGenerator(private val codegen: CodeGenerator) {
     }
 
     fun org.jetbrains.kotlin.backend.konan.Context.LongInt(value: Long) =
-            if (is64BitLong()) Int64(value) else Int32(value.toInt())
+            when (val longWidth = llvm.longTypeWidth) {
+                32L -> Int32(value.toInt())
+                64L -> Int64(value)
+                else -> error("Unexpected width of long type: $longWidth")
+            }
 
     private fun generateDescriptorForBlock(blockType: BlockType): ConstValue {
         val numberOfParameters = blockType.numberOfParameters
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objcexport/ObjCExportCodeGenerator.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objcexport/ObjCExportCodeGenerator.kt
index 2d8a8caba37..55a808b2074 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objcexport/ObjCExportCodeGenerator.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objcexport/ObjCExportCodeGenerator.kt
@@ -29,7 +29,7 @@ import org.jetbrains.kotlin.ir.symbols.IrConstructorSymbol
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.types.*
 import org.jetbrains.kotlin.ir.util.*
-import org.jetbrains.kotlin.konan.target.KonanTarget
+import org.jetbrains.kotlin.konan.target.AppleConfigurables
 import org.jetbrains.kotlin.konan.target.LinkerOutputKind
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.utils.DFS
@@ -1669,56 +1669,10 @@ private val TypeBridge.objCEncoding: String get() = when (this) {
     is ValueTypeBridge -> this.objCValueType.encoding
 }
 
-private fun Context.is64BitNSInteger(): Boolean = when (val target = this.config.target) {
-    KonanTarget.IOS_X64,
-    KonanTarget.IOS_ARM64,
-    KonanTarget.TVOS_ARM64,
-    KonanTarget.TVOS_X64,
-    KonanTarget.MACOS_X64,
-    KonanTarget.MACOS_ARM64,
-    KonanTarget.WATCHOS_X64 -> true
-    KonanTarget.WATCHOS_ARM64,
-    KonanTarget.WATCHOS_ARM32,
-    KonanTarget.WATCHOS_X86,
-    KonanTarget.IOS_ARM32 -> false
-    KonanTarget.ANDROID_X64,
-    KonanTarget.ANDROID_X86,
-    KonanTarget.ANDROID_ARM32,
-    KonanTarget.ANDROID_ARM64,
-    KonanTarget.LINUX_X64,
-    KonanTarget.MINGW_X86,
-    KonanTarget.MINGW_X64,
-    KonanTarget.LINUX_ARM64,
-    KonanTarget.LINUX_ARM32_HFP,
-    KonanTarget.LINUX_MIPS32,
-    KonanTarget.LINUX_MIPSEL32,
-    KonanTarget.WASM32,
-    is KonanTarget.ZEPHYR -> error("Target $target has no support for NSInteger type.")
-}
-
-internal fun Context.is64BitLong(): Boolean = when (this.config.target) {
-    KonanTarget.IOS_X64,
-    KonanTarget.IOS_ARM64,
-    KonanTarget.TVOS_ARM64,
-    KonanTarget.TVOS_X64,
-    KonanTarget.ANDROID_X64,
-    KonanTarget.ANDROID_ARM64,
-    KonanTarget.LINUX_ARM64,
-    KonanTarget.MINGW_X64,
-    KonanTarget.LINUX_X64,
-    KonanTarget.MACOS_X64,
-    KonanTarget.MACOS_ARM64,
-    KonanTarget.WATCHOS_X64 -> true
-    KonanTarget.WATCHOS_ARM64,
-    KonanTarget.WATCHOS_ARM32,
-    KonanTarget.ANDROID_X86,
-    KonanTarget.ANDROID_ARM32,
-    KonanTarget.WATCHOS_X86,
-    KonanTarget.MINGW_X86,
-    KonanTarget.LINUX_ARM32_HFP,
-    KonanTarget.LINUX_MIPS32,
-    KonanTarget.LINUX_MIPSEL32,
-    KonanTarget.WASM32,
-    is KonanTarget.ZEPHYR,
-    KonanTarget.IOS_ARM32 -> false
+private fun Context.is64BitNSInteger(): Boolean {
+    val configurables = this.config.platform.configurables
+    require(configurables is AppleConfigurables) {
+        "Target ${configurables.target} has no support for NSInteger type."
+    }
+    return llvm.nsIntegerTypeWidth == 64L
 }
diff --git a/kotlin-native/runtime/src/main/cpp/ObjCExport.h b/kotlin-native/runtime/src/main/cpp/ObjCExport.h
index 3ede22a3035..e2b637ba48e 100644
--- a/kotlin-native/runtime/src/main/cpp/ObjCExport.h
+++ b/kotlin-native/runtime/src/main/cpp/ObjCExport.h
@@ -39,6 +39,9 @@ extern "C" OBJ_GETTER(Kotlin_ObjCExport_refFromObjC, id obj);
 extern "C" id Kotlin_Interop_CreateNSStringFromKString(KRef str);
 extern "C" OBJ_GETTER(Kotlin_Interop_CreateKStringFromNSString, NSString* str);
 
+/// Utility function that is used to determine NSInteger size in compile time.
+extern "C" NSInteger Kotlin_ObjCExport_NSIntegerTypeProvider();
+
 #endif // KONAN_OBJC_INTEROP
 
 #endif // RUNTIME_OBJCEXPORT_H
diff --git a/kotlin-native/runtime/src/main/cpp/ObjCExport.mm b/kotlin-native/runtime/src/main/cpp/ObjCExport.mm
index 795d1a91b94..aca91e2a5ac 100644
--- a/kotlin-native/runtime/src/main/cpp/ObjCExport.mm
+++ b/kotlin-native/runtime/src/main/cpp/ObjCExport.mm
@@ -1090,6 +1090,10 @@ extern "C" void Kotlin_ObjCExport_AbstractMethodCalled(id self, SEL selector) {
         class_getName(object_getClass(self)), sel_getName(selector)];
 }
 
+extern "C" NSInteger Kotlin_ObjCExport_NSIntegerTypeProvider() {
+    return 0;
+}
+
 #else
 
 extern "C" ALWAYS_INLINE void* Kotlin_Interop_refToObjC(ObjHeader* obj) {
diff --git a/kotlin-native/runtime/src/main/cpp/Types.cpp b/kotlin-native/runtime/src/main/cpp/Types.cpp
index b7defd21d51..57a6762caef 100644
--- a/kotlin-native/runtime/src/main/cpp/Types.cpp
+++ b/kotlin-native/runtime/src/main/cpp/Types.cpp
@@ -108,4 +108,8 @@ KVector4f Kotlin_Vector4i32_of(KInt f0, KInt f1, KInt f2, KInt f3) {
 	return (KVector4f)v4i;
 }
 
+long Kotlin_longTypeProvider() {
+    return 0;
+}
+
 }  // extern "C"
diff --git a/kotlin-native/runtime/src/main/cpp/Types.h b/kotlin-native/runtime/src/main/cpp/Types.h
index 64300cc0af1..bcdcdde20c4 100644
--- a/kotlin-native/runtime/src/main/cpp/Types.h
+++ b/kotlin-native/runtime/src/main/cpp/Types.h
@@ -124,6 +124,9 @@ void CheckCast(const ObjHeader* obj, const TypeInfo* type_info);
 KBoolean IsArray(KConstRef obj) RUNTIME_PURE;
 bool IsSubInterface(const TypeInfo* thiz, const TypeInfo* other) RUNTIME_PURE;
 
+/// Utility function that is used to determine long type size in compile time.
+long Kotlin_longTypeProvider();
+
 #ifdef __cplusplus
 }
 #endif