Kotlin: DPE-62 Check if OS is Windows and run relevant commands in each case.

build-gradle/transport/build.gradle

@@ -1,3 +1,4 @@
+import org.gradle.internal.os.OperatingSystem
 
 plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.5.0'
@@ -37,19 +38,29 @@ dependencies {
 
 task cleanSrc() {
     description = "make clean"
-    exec{
-        def command = ['make', 'clean']
-        workingDir "../../src"
-        commandLine command
+    if (!OperatingSystem.current().isWindows()) {
+        exec {
+            def command = ['make', 'clean']
+            workingDir "../../src"
+            commandLine command
+        }
     }
 }
 
 task makeSrc(dependsOn: 'cleanSrc') {
     description = "make src"
-    exec{
-        def command = ['make', 'all']
-        workingDir "../../src"
-        commandLine command
+    if (OperatingSystem.current().isWindows()) {
+        exec {
+            def command = ['cmd', '/c', 'generate_code.cmd']
+            workingDir "../../build-windows"
+            commandLine command
+        }
+    } else {
+        exec {
+            def command = ['make', 'all']
+            workingDir "../../src"
+            commandLine command
+        }
     }
 }