src/Pure/System/build.scala
changeset 48916 f45ccc0d1ace
parent 48912 ffdb37019b2f
child 48992 0518bf89c777
--- a/src/Pure/System/build.scala	Thu Aug 23 21:23:14 2012 +0200
+++ b/src/Pure/System/build.scala	Fri Aug 24 11:03:52 2012 +0200
@@ -185,7 +185,7 @@
             (opt(session_name ~! keyword("+") ^^ { case x ~ _ => x }) ~
               ((keyword(DESCRIPTION) ~! text ^^ { case _ ~ x => x }) | success("")) ~
               ((keyword(OPTIONS) ~! options ^^ { case _ ~ x => x }) | success(Nil)) ~
-              rep(theories) ~
+              rep1(theories) ~
               ((keyword(FILES) ~! rep1(path) ^^ { case _ ~ x => x }) | success(Nil))))) ^^
         { case _ ~ (a ~ b ~ c ~ (_ ~ (d ~ e ~ f ~ g ~ h))) =>
             Session_Entry(pos, a, b, c, d, e, f, g, h) }