Ruby examples makefiles and use RUNPIPE and tidyup

Examples/ruby/hashargs/Makefile

@@ -6,15 +6,16 @@ INTERFACE  = example.i
 LIBS       = -lm
 SWIGOPT    = 
 
-all::
+check: build
+	$(MAKE) -f $(TOP)/Makefile ruby_run
+
+build:
 	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
 	SWIGOPT='$(SWIGOPT)' TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' ruby
 
-static::
+static:
 	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
 	TARGET='myruby' INTERFACE='$(INTERFACE)' ruby_static
 
-clean::
+clean:
 	$(MAKE) -f $(TOP)/Makefile ruby_clean
-
-check: all