add native targets

README.md

@@ -12,7 +12,7 @@
 ![watchOS](https://img.shields.io/badge/watchOS-blue)
 ![tvOS](https://img.shields.io/badge/tvOS-blue)
 
-A Kotlin Multiplatform library to provide **regular date-time functionality needed with very minimal platform dependencies**. It means upgrading OS / platform SDK target versions or moving to another platform would not break your application. Same and consistent core API set is provided to all JVM, Apple, JS targets.
+A Kotlin Multiplatform library to provide **regular date-time functionality needed with very minimal platform dependencies**. It means upgrading OS / platform SDK target versions or moving to another platform would not break your application. Same and consistent core API set is provided to all JVM, Apple, JS and native targets.
 
 Comparing with the kotlinx one, this library additionally provides formatting and parsing from custom formatted string. As it has extremely few dependencies, it is very lightweight. The sum of all the artifacts among all the platforms, including source jars and javadocs, is less than 700 KB.
 

build.gradle.kts

@@ -88,14 +88,17 @@ kotlin {
             }
         }
     }
-//    val hostOs = System.getProperty("os.name")
-//    val isMingwX64 = hostOs.startsWith("Windows")
-//    val nativeTarget = when {
-//        hostOs == "Mac OS X" -> macosX64("native")
-//        hostOs == "Linux" -> linuxX64("native")
-//        isMingwX64 -> mingwX64("native")
-//        else -> throw GradleException("Host OS is not supported in Kotlin/Native.")
-//    }
+    val hostOs = System.getProperty("os.name")
+    val isMingwX64 = hostOs.startsWith("Windows")
+    val nativeTarget = when {
+        hostOs == "Mac OS X" -> null // macosX64("native")
+        hostOs == "Linux" -> linuxX64("native")
+        isMingwX64 -> mingwX64("native")
+        else -> {
+            println("Warning: Host OS is not supported in Kotlin/Native.")
+            null
+        }
+    }
 
 
     sourceSets {
@@ -156,8 +159,10 @@ kotlin {
         }
         val jsMain by getting
         val jsTest by getting
-//        val nativeMain by getting
-//        val nativeTest by getting
+        if (nativeTarget != null) {
+            val nativeMain by getting
+            val nativeTest by getting
+        }
 
         configure(darwinTargets) {
             val (mainSourceSet, testSourceSet) = when {

doc/docs/Getting Started.md

@@ -26,7 +26,7 @@ In build.gradle.kts, add the dependency.
         // ...
 ```
 
-### Use in Swift / Objective-C
+### Use in Swift / Objective-C (Optional)
 
 Add a transitive export to the `framework` DSL in build.gradle.kts:
 ```kotlin
@@ -43,3 +43,20 @@ import shared
 ```
 
 Note the framework base name `shared` is customizable.
+
+## For Native Targets
+
+Only macOS native target was built and published to Maven Central. For other OS targets (Linux and Windows), they are also supported, but you would have to clone the source code and build manually. It is not difficult.
+
+In the target OS,
+
+1. Grab a JDK with version 17 or above
+2. `git clone` source code
+3. Execute `./gradlew clean publishToMavenLocal`
+4. In your project, add:
+```kotlin
+repositories {
+    mavenLocal()
+    // ...
+}
+```

doc/docs/index.md

@@ -15,7 +15,7 @@ title: Home
 ![watchOS](https://img.shields.io/badge/watchOS-blue)
 ![tvOS](https://img.shields.io/badge/tvOS-blue)
 
-KDateTime is a Kotlin Multiplatform library to provide **regular date-time functionality needed with very minimal platform dependencies**. It means upgrading OS / platform SDK target versions or moving to another platform would not break your application. Same and consistent core API set is provided to all JVM, Apple, JS targets.
+KDateTime is a Kotlin Multiplatform library to provide **regular date-time functionality needed with very minimal platform dependencies**. It means upgrading OS / platform SDK target versions or moving to another platform would not break your application. Same and consistent core API set is provided to all JVM, Apple, JS and native targets.
 
 Comparing with the kotlinx one, this library additionally provides formatting and parsing from custom formatted string. As it has extremely few dependencies, it is very lightweight. The sum of all the artifacts among all the platforms, including source jars and javadocs, is less than 700 KB.