makefile-targets and some other meta info functions added

examples/Makefile.rkt

@@ -8,23 +8,23 @@
 (define CC 'cc)
 (define CFLAGS '(-Wall -O2))
 
-(makefile hello
-  (default-target all)
-  (phony all clean setup test)
+(makefile 'hello
+  (default-target 'all)
+  (phony 'all 'clean 'setup 'test)
 
-  (target all
+  (target 'all
     (deps "hello"))
 
   (target "hello"
     (deps "hello.c")
     (run `(,CC ,@CFLAGS -o $target $<)))
 
-  (target clean
+  (target 'clean
     (rm-f "hello")
     (rm-rf "compiled"))
 
-  (target setup
+  (target 'setup
     (raco '(setup racket-makefile)))
 
-  (target test
+  (target 'test
     (raco '(test -p racket-makefile))))