# HG changeset patch
# User wenzelm
# Date 1393605079 -3600
# Node ID 519625ec22a009593ed1a22d017ceb43cf37771c
# Parent  f4e9517657b124c7937dbd8b265dc0a1c69183d1
explicit link to Z3 license;

diff -r f4e9517657b1 -r 519625ec22a0 src/HOL/Tools/SMT/smt_setup_solvers.ML
--- a/src/HOL/Tools/SMT/smt_setup_solvers.ML	Fri Feb 28 15:20:18 2014 +0100
+++ b/src/HOL/Tools/SMT/smt_setup_solvers.ML	Fri Feb 28 17:31:19 2014 +0100
@@ -117,10 +117,13 @@
       error (Pretty.string_of (Pretty.para
         "The SMT solver Z3 may only be used for non-commercial applications."))
   | Z3_Non_Commercial_Unknown =>
-      error (Pretty.string_of (Pretty.para
-        ("The SMT solver Z3 is not activated. To activate it, set the Isabelle \
-         \system option \"z3_non_commercial\" to \"yes\" (e.g. via \
-         \the Isabelle/jEdit menu Plugin Options / Isabelle / General)."))))
+      error
+        (Pretty.string_of
+          (Pretty.para
+            ("The SMT solver Z3 is not activated. To activate it, set the Isabelle \
+             \system option \"z3_non_commercial\" to \"yes\" (e.g. via \
+             \the Isabelle/jEdit menu Plugin Options / Isabelle / General).")) ^
+        "\n\nSee also " ^ Url.print (Url.explode "http://z3.codeplex.com/license")))
 
 end