Add SKIP_NATIVE to skip building for native

* remove tail
* DEBUG_SHELL: pause before copying

run.sh

@@ -20,7 +20,6 @@ cd ./w
 
 if [ "${DEBUG_SHELL-n}" = y ]; then
 	echo "Stopping before build... Run 'exit 1' to skip building"
-	tail -12 "$0"
 	bash
 fi
 
@@ -34,9 +33,9 @@ fi
 
 LOGDEST=../output PKGDEST=../output makepkg --syncdeps --log
 
-sudo cp -r ../output /w
-
 if [ "${DEBUG_SHELL-n}" = y ]; then
 	echo "Build complete"
 	bash
 fi
+
+sudo cp -r ../output /w