tnitter: add the clean rule to Makefile

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

diff --git a/contrib/tnitter/Makefile b/contrib/tnitter/Makefile
index 2f6efba..daa66df 100644 (file)
--- a/contrib/tnitter/Makefile
+++ b/contrib/tnitter/Makefile
@@ -22,3 +22,6 @@ android-release: $(shell ../../bin/nitls -M src/tnitter_app_android.nit) res/dra
 res/drawable-ldpi/icon.png: art/icon.svg
        mkdir -p res
        ../inkscape_tools/bin/svg_to_icons art/icon.svg --android --out res/
+
+clean:
+       rm -r res bin