src/Pure/System/components.scala
changeset 77090 d3437203c1df
parent 77088 6e2c6ccc5dc0
child 77097 023273cf2651
--- a/src/Pure/System/components.scala	Tue Jan 24 23:05:32 2023 +0100
+++ b/src/Pure/System/components.scala	Wed Jan 25 13:16:43 2023 +0100
@@ -39,6 +39,7 @@
     Isabelle_System.getenv("ISABELLE_COMPONENT_REPOSITORY")
 
   val default_components_base: Path = Path.explode("$ISABELLE_COMPONENTS_BASE")
+  val standard_components_base: String = "${ISABELLE_COMPONENTS_BASE:-$USER_HOME/.isabelle/contrib}"
 
   val default_catalogs: List[String] = List("main")
   val optional_catalogs: List[String] = List("main", "optional")