object.c: suppress warning

* object.c (rb_obj_alloc): suppress unused variable warning.

* tool/gen_dummy_probes.rb: define dtrace disabling macro.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37691 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

object.c

@@ -1686,12 +1686,14 @@ rb_obj_alloc(VALUE klass)
 		 klass);
     }
 
+#if !defined(DTRACE_PROBES_DISABLED) || !DTRACE_PROBES_DISABLED
     if (RUBY_DTRACE_OBJECT_CREATE_ENABLED()) {
         const char * file = rb_sourcefile();
         RUBY_DTRACE_OBJECT_CREATE(rb_class2name(klass),
 				  file ? file : "",
 				  rb_sourceline());
     }
+#endif
 
     obj = (*allocator)(klass);
 

tool/gen_dummy_probes.rb

@@ -1,4 +1,5 @@
 #!/usr/bin/ruby
+# -*- coding: us-ascii -*-
 
 text = ARGF.read
 text.upcase!
@@ -7,7 +8,7 @@ text.upcase!
 text.gsub!(/^#PRAGMA.*$/, '')
 
 # replace the provider section with the start of the header file
-text.gsub!(/PROVIDER RUBY \{/, "#ifndef\t_PROBES_H\n#define\t_PROBES_H")
+text.gsub!(/PROVIDER RUBY \{/, "#ifndef\t_PROBES_H\n#define\t_PROBES_H\n#define DTRACE_PROBES_DISABLED 1\n")
 
 # finish up the #ifndef sandwich
 text.gsub!(/\};/, "#endif\t/* _PROBES_H */")