ruby.c: only for load-relative

* ruby.c (dladdr_path): used only when load-relative is enabled.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49395 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ruby.c

@@ -364,7 +364,7 @@ ruby_init_loadpath(void)
     ruby_init_loadpath_safe(0);
 }
 
-#if defined(HAVE_DLADDR)
+#if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR)
 static VALUE
 dladdr_path(const void* addr)
 {