Fix the compilation of opam on Windows with OCaml >= 5.0 (again)

src/core/dune

@@ -29,6 +29,10 @@
   (enabled_if (<> %{os_type} "Win32"))
   (action (copy# opamStubs.unix.ml opamStubs.ml)))
 
+(rule
+ (enabled_if (= %{os_type} "Win32"))
+ (action (copy# opamWin32Stubs.win32.ml opamWin32Stubs.ml)))
+
 (rule
  (enabled_if (and (= %{os_type} "Win32") (< %{ocaml_version} "5.0")))
  (action (copy# opamStubs.ocaml4.ml opamStubs.ml)))

src/core/opamStubs.ocaml4.ml

@@ -8,45 +8,8 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include OpamStubsTypes
+include OpamWin32Stubs
 
-external getCurrentProcessID : unit -> int32 = "OPAMW_GetCurrentProcessID"
-let getpid () = Int32.to_int (getCurrentProcessID ())
-(* Polymorphic parameters below are used as placeholders for types in
- * OpamStubsTypes - it's not worth the effort of propagating the types here,
- * even if it does result in some ugly-looking primitives!
- *)
-external getStdHandle : 'a -> 'b = "OPAMW_GetStdHandle"
-external getConsoleScreenBufferInfo : 'a -> 'b = "OPAMW_GetConsoleScreenBufferInfo"
-external setConsoleTextAttribute : 'a -> int -> unit = "OPAMW_SetConsoleTextAttribute"
-external fillConsoleOutputCharacter : 'a -> char -> int -> int * int -> bool = "OPAMW_FillConsoleOutputCharacter"
-external getConsoleMode : 'a -> int = "OPAMW_GetConsoleMode"
-external setConsoleMode : 'a -> int -> bool = "OPAMW_SetConsoleMode"
-external getWindowsVersion : unit -> int * int * int * int = "OPAMW_GetWindowsVersion"
-external getArchitecture : unit -> 'a = "OPAMW_GetArchitecture"
-external waitpids : int list -> int -> int * Unix.process_status = "OPAMW_waitpids"
-external readRegistry : 'a -> string -> string -> 'b -> 'c option = "OPAMW_ReadRegistry"
-external enumRegistry : 'a -> string -> 'b -> (string * 'c) list = "OPAMW_RegEnumValue"
-external writeRegistry : 'a -> string -> string -> 'b -> 'c -> unit = "OPAMW_WriteRegistry"
-external getConsoleOutputCP : unit -> int = "OPAMW_GetConsoleOutputCP"
-external getCurrentConsoleFontEx : 'a -> bool -> 'b = "OPAMW_GetCurrentConsoleFontEx"
-external create_glyph_checker : string -> 'a * 'a = "OPAMW_CreateGlyphChecker"
-external delete_glyph_checker : 'a * 'a -> unit = "OPAMW_DeleteGlyphChecker"
-external has_glyph : 'a * 'a -> Uchar.t -> bool = "OPAMW_HasGlyph"
-external getProcessArchitecture : int32 option -> 'a = "OPAMW_GetProcessArchitecture"
-external process_putenv : int32 -> string -> string -> bool = "OPAMW_process_putenv"
-external getPathToHome : unit -> string = "OPAMW_GetPathToHome"
-external getPathToSystem : unit -> string = "OPAMW_GetPathToSystem"
-external getPathToLocalAppData : unit -> string = "OPAMW_GetPathToLocalAppData"
-external sendMessageTimeout : nativeint -> int -> int -> 'a -> 'b -> 'c -> int * 'd = "OPAMW_SendMessageTimeout_byte" "OPAMW_SendMessageTimeout"
-external getProcessAncestry : unit -> (int32 * string) list = "OPAMW_GetProcessAncestry"
-external getConsoleAlias : string -> string -> string = "OPAMW_GetConsoleAlias"
-external getConsoleWindowClass : unit -> string option = "OPAMW_GetConsoleWindowClass"
-external setErrorMode : int -> int = "OPAMW_SetErrorMode"
-external getErrorMode : unit -> int = "OPAMW_GetErrorMode"
-external setConsoleToUTF8 : unit -> unit = "OPAMW_SetConsoleToUTF8"
-external getVersionInfo : string -> 'a option = "OPAMW_GetVersionInfo"
-external get_initial_environment : unit -> string list = "OPAMW_CreateEnvironmentBlock"
 external win_create_process : string -> string -> string option ->
                               Unix.file_descr -> Unix.file_descr -> Unix.file_descr -> int
                             = "win_create_process" "win_create_process_native"

src/core/opamStubs.ocaml5.ml

@@ -8,9 +8,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include OpamStubsTypes
 include OpamWin32Stubs
-let getpid () = Int32.to_int (getCurrentProcessID ())
 
 external win_create_process : string -> string -> string option ->
                               Unix.file_descr -> Unix.file_descr -> Unix.file_descr -> int

src/core/opamWin32Stubs.win32.ml

@@ -0,0 +1,49 @@
+(**************************************************************************)
+(*                                                                        *)
+(*    Copyright 2018 MetaStack Solutions Ltd.                             *)
+(*                                                                        *)
+(*  All rights reserved. This file is distributed under the terms of the  *)
+(*  GNU Lesser General Public License version 2.1, with the special       *)
+(*  exception on linking described in the file LICENSE.                   *)
+(*                                                                        *)
+(**************************************************************************)
+
+include OpamStubsTypes
+
+external getCurrentProcessID : unit -> int32 = "OPAMW_GetCurrentProcessID"
+let getpid () = Int32.to_int (getCurrentProcessID ())
+(* Polymorphic parameters below are used as placeholders for types in
+ * OpamStubsTypes - it's not worth the effort of propagating the types here,
+ * even if it does result in some ugly-looking primitives!
+ *)
+external getStdHandle : 'a -> 'b = "OPAMW_GetStdHandle"
+external getConsoleScreenBufferInfo : 'a -> 'b = "OPAMW_GetConsoleScreenBufferInfo"
+external setConsoleTextAttribute : 'a -> int -> unit = "OPAMW_SetConsoleTextAttribute"
+external fillConsoleOutputCharacter : 'a -> char -> int -> int * int -> bool = "OPAMW_FillConsoleOutputCharacter"
+external getConsoleMode : 'a -> int = "OPAMW_GetConsoleMode"
+external setConsoleMode : 'a -> int -> bool = "OPAMW_SetConsoleMode"
+external getWindowsVersion : unit -> int * int * int * int = "OPAMW_GetWindowsVersion"
+external getArchitecture : unit -> 'a = "OPAMW_GetArchitecture"
+external waitpids : int list -> int -> int * Unix.process_status = "OPAMW_waitpids"
+external readRegistry : 'a -> string -> string -> 'b -> 'c option = "OPAMW_ReadRegistry"
+external enumRegistry : 'a -> string -> 'b -> (string * 'c) list = "OPAMW_RegEnumValue"
+external writeRegistry : 'a -> string -> string -> 'b -> 'c -> unit = "OPAMW_WriteRegistry"
+external getConsoleOutputCP : unit -> int = "OPAMW_GetConsoleOutputCP"
+external getCurrentConsoleFontEx : 'a -> bool -> 'b = "OPAMW_GetCurrentConsoleFontEx"
+external create_glyph_checker : string -> 'a * 'a = "OPAMW_CreateGlyphChecker"
+external delete_glyph_checker : 'a * 'a -> unit = "OPAMW_DeleteGlyphChecker"
+external has_glyph : 'a * 'a -> Uchar.t -> bool = "OPAMW_HasGlyph"
+external getProcessArchitecture : int32 option -> 'a = "OPAMW_GetProcessArchitecture"
+external process_putenv : int32 -> string -> string -> bool = "OPAMW_process_putenv"
+external getPathToHome : unit -> string = "OPAMW_GetPathToHome"
+external getPathToSystem : unit -> string = "OPAMW_GetPathToSystem"
+external getPathToLocalAppData : unit -> string = "OPAMW_GetPathToLocalAppData"
+external sendMessageTimeout : nativeint -> int -> int -> 'a -> 'b -> 'c -> int * 'd = "OPAMW_SendMessageTimeout_byte" "OPAMW_SendMessageTimeout"
+external getProcessAncestry : unit -> (int32 * string) list = "OPAMW_GetProcessAncestry"
+external getConsoleAlias : string -> string -> string = "OPAMW_GetConsoleAlias"
+external getConsoleWindowClass : unit -> string option = "OPAMW_GetConsoleWindowClass"
+external setErrorMode : int -> int = "OPAMW_SetErrorMode"
+external getErrorMode : unit -> int = "OPAMW_GetErrorMode"
+external setConsoleToUTF8 : unit -> unit = "OPAMW_SetConsoleToUTF8"
+external getVersionInfo : string -> 'a option = "OPAMW_GetVersionInfo"
+external get_initial_environment : unit -> string list = "OPAMW_CreateEnvironmentBlock"