diff --git a/lib/rscons/builder.rb b/lib/rscons/builder.rb
index 210a550..b13dd49 100644
--- a/lib/rscons/builder.rb
+++ b/lib/rscons/builder.rb
@@ -68,19 +68,21 @@ module Rscons
     # needed later in the build, it can be stored in the return value from this
     # method, which will be passed to the {#run} method.
     #
-    # @param target [String]
+    # @param options [Hash]
+    #   Options.
+    # @option options [String] :target
     #   Target file name.
-    # @param sources [Array<String>]
+    # @option options [Array<String>] :sources
     #   Source file name(s).
-    # @param env [Environment]
+    # @option options [Environment] :env
     #   The Environment executing the builder.
-    # @param vars [Hash,VarSet]
+    # @option options [Hash,VarSet] :vars
     #   Extra construction variables.
     #
     # @return [Object]
     #   Any object that the builder author wishes to be saved and passed back
     #   in to the {#run} method.
-    def setup(target, sources, env, vars)
+    def setup(options)
     end
 
     # Run the builder to produce a build target.
diff --git a/lib/rscons/environment.rb b/lib/rscons/environment.rb
index 3cad39b..82afdb4 100644
--- a/lib/rscons/environment.rb
+++ b/lib/rscons/environment.rb
@@ -395,6 +395,11 @@ module Rscons
         source = expand_path(source) if @build_root
         expand_varref(source)
       end.flatten
+      setup_info = builder.setup(
+        target: target,
+        sources: sources,
+        env: self,
+        vars: vars)
       @job_set.add_job(builder, target, sources, vars)
     end