Object builder changes in preparation for adding SharedObject

lib/rscons/builders/object.rb

@@ -62,17 +62,19 @@ module Rscons
       # Return whether this builder object is capable of producing a given target
       # file name from a given source file name.
       #
-      # @param target [String] The target file name.
-      # @param source [String] The source file name.
-      # @param env [Environment] The Environment.
+      # @param options [Hash]
+      #   Options.
       #
       # @return [Boolean]
       #   Whether this builder object is capable of producing a given target
       #   file name from a given source file name.
-      def produces?(target, source, env)
-        target.end_with?(*env['OBJSUFFIX']) and KNOWN_SUFFIXES.find do |compiler, suffix_var|
-          source.end_with?(*env[suffix_var])
-        end
+      def produces?(options)
+        target, source, env, features = options.values_at(:target, :source, :env, :features)
+        (not features[:shared]) and
+          target.end_with?(*env['OBJSUFFIX']) and
+          KNOWN_SUFFIXES.find do |compiler, suffix_var|
+            source.end_with?(*env[suffix_var])
+          end
       end
 
       # Run the builder to produce a build target.

lib/rscons/environment.rb

@@ -972,7 +972,10 @@ module Rscons
       if builder.method(:produces?).arity == 3
         builder.produces?(options[:target], options[:source], self)
       else
-        builder.produces?(options.merge(env: self))
+        options = options.dup
+        options[:features] ||= {}
+        options[:env] = self
+        builder.produces?(options)
       end
     end