1 files changed, 41 insertions, 1 deletions
diff --git a/pretyping/program.ml b/pretyping/program.ml
index 0bd121f6f1..b4333847b7 100644
--- a/pretyping/program.ml
+++ b/pretyping/program.ml
@@ -7,7 +7,7 @@
 (************************************************************************)
 
 open Pp
-open Errors
+open CErrors
 open Util
 open Names
 open Term
@@ -67,3 +67,43 @@ let mk_coq_and l =
       (fun c conj ->
 	 mkApp (and_typ, [| c ; conj |]))
       l
+
+(* true = transparent by default, false = opaque if possible *)
+let proofs_transparency = ref true
+let program_cases = ref true
+let program_generalized_coercion = ref true
+
+let set_proofs_transparency = (:=) proofs_transparency
+let get_proofs_transparency () = !proofs_transparency
+
+let is_program_generalized_coercion () = !program_generalized_coercion
+let is_program_cases () = !program_cases
+
+open Goptions
+
+let _ =
+  declare_bool_option
+  { optsync  = true;
+    optdepr  = false;
+    optname  = "preferred transparency of Program obligations";
+    optkey   = ["Transparent";"Obligations"];
+    optread  = get_proofs_transparency;
+    optwrite = set_proofs_transparency; }
+
+let _ =
+  declare_bool_option
+  { optsync  = true;
+    optdepr  = false;
+    optname  = "program cases";
+    optkey   = ["Program";"Cases"];
+    optread  = (fun () -> !program_cases);
+    optwrite = (:=) program_cases }
+
+let _ =
+  declare_bool_option
+  { optsync  = true;
+    optdepr  = false;
+    optname  = "program generalized coercion";
+    optkey   = ["Program";"Generalized";"Coercion"];
+    optread  = (fun () -> !program_generalized_coercion);
+    optwrite = (:=) program_generalized_coercion }