core: intro `is_windows`

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/core/kernel.nit b/lib/core/kernel.nit
index fe45072..18dd7ac 100644 (file)
--- a/lib/core/kernel.nit
+++ b/lib/core/kernel.nit
@@ -1073,3 +1073,12 @@ interface Task
        # Main method of this task
        fun main do end
 end
+
+# Is this program currently running in a Windows OS?
+fun is_windows: Bool `{
+#ifdef _WIN32
+       return 1;
+#else
+       return 0;
+#endif
+`}