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-rw-r--r--lib/system.ml9
-rw-r--r--lib/system.mli2
2 files changed, 11 insertions, 0 deletions
diff --git a/lib/system.ml b/lib/system.ml
index 4e98651d6e..e25f758865 100644
--- a/lib/system.ml
+++ b/lib/system.ml
@@ -168,6 +168,15 @@ let try_remove filename =
let error_corrupted file s =
CErrors.user_err ~hdr:"System" (str file ++ str ": " ++ str s ++ str ". Try to rebuild it.")
+let check_caml_version ~caml:s ~file:f =
+ if not (String.equal Coq_config.caml_version s) then
+ CErrors.user_err (str ("The file " ^ f ^ " was compiled with OCaml") ++
+ spc () ++ str s ++ spc () ++ str "while this instance of Coq was compiled \
+ with OCaml" ++ spc() ++ str Coq_config.caml_version ++ str "." ++ spc () ++
+ str "Coq object files need to be compiled with the same OCaml toolchain to \
+ be compatible.")
+ else ()
+
let input_binary_int f ch =
try input_binary_int ch
with
diff --git a/lib/system.mli b/lib/system.mli
index 4a8c35b6ea..1e2f519327 100644
--- a/lib/system.mli
+++ b/lib/system.mli
@@ -88,6 +88,8 @@ val with_magic_number_check : ('a -> 'b) -> 'a -> 'b
val marshal_out : out_channel -> 'a -> unit
val marshal_in : string -> in_channel -> 'a
+val check_caml_version : caml:string -> file:string -> unit
+
(** {6 Time stamps.} *)
type time