Ruby examples makefiles and use RUNPIPE and tidyup

Examples/ruby/java/Makefile

@@ -5,21 +5,18 @@ TARGET     = example
 INTERFACE  = example.i
 LIBS       = -lm
 
-all:: Example.class
+check: build
+	$(MAKE) -f $(TOP)/Makefile ruby_run
+
+build: Example.class
 	$(MAKE) -f $(TOP)/Makefile CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
 	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' CXX="gcj" \
 	CXXSHARED="gcj -fpic -shared Example.class" LIBS="-lstdc++" DEFS='' ruby_cpp
 
-
-clean::
-	$(MAKE) -f $(TOP)/Makefile python_clean
+clean:
+	$(MAKE) -f $(TOP)/Makefile ruby_clean
 	rm -f *.class Example.h
 
-check: all
-
-run:
-	ruby runme.rb
-
 Example.class: Example.java
 	gcj -fPIC -C -c -g Example.java
 	gcjh  Example