diff --git a/libguile/eval.h b/libguile/eval.h
index 4f3abc1da..d7939249a 100644
--- a/libguile/eval.h
+++ b/libguile/eval.h
@@ -114,6 +114,8 @@ extern SCM * scm_lookupcar (SCM vloc, SCM genv);
 extern SCM scm_unmemocar (SCM form, SCM env);
 extern SCM scm_unmemocopy (SCM form, SCM env);
 extern SCM scm_eval_car (SCM pair, SCM env);
+extern SCM scm_eval_args (SCM i, SCM env);
+extern SCM scm_deval_args (SCM l, SCM env, SCM *lloc);
 extern SCM scm_m_quote (SCM xorig, SCM env);
 extern SCM scm_m_begin (SCM xorig, SCM env);
 extern SCM scm_m_if (SCM xorig, SCM env);
@@ -134,6 +136,7 @@ extern SCM scm_m_letrec (SCM xorig, SCM env);
 extern SCM scm_m_let (SCM xorig, SCM env);
 extern SCM scm_m_apply (SCM xorig, SCM env);
 extern SCM scm_m_cont (SCM xorig, SCM env);
+extern SCM scm_m_undefine (SCM x, SCM env);
 extern int scm_badargsp (SCM formals, SCM args);
 extern SCM scm_ceval (SCM x, SCM env);
 extern SCM scm_deval (SCM x, SCM env);
@@ -168,6 +171,8 @@ extern SCM * scm_lookupcar ();
 extern SCM scm_unmemocar ();
 extern SCM scm_unmemocopy ();
 extern SCM scm_eval_car ();
+extern SCM scm_eval_args ();
+extern SCM scm_deval_args ();
 extern SCM scm_m_quote ();
 extern SCM scm_m_begin ();
 extern SCM scm_m_if ();
@@ -188,6 +193,7 @@ extern SCM scm_m_letrec ();
 extern SCM scm_m_let ();
 extern SCM scm_m_apply ();
 extern SCM scm_m_cont ();
+extern SCM scm_m_undefine ();
 extern int scm_badargsp ();
 extern SCM scm_ceval ();
 extern SCM scm_deval ();