fix: add OCaml 5 support

Makefile

@@ -37,4 +37,5 @@ watch:
 doc:
 	cd doc && sphinx-build . _build
 
-
+deps:
+	opam install --yes ppx_show ppx_string_interpolation ppxlib dune-configurator dune ppx_inline_test

config/discover.ml

@@ -22,6 +22,11 @@ end
 
 let write_sexp fn sexp = Out_channel.write_all fn ~data:(Sexp.to_string sexp)
 
+let qtquick_pkg,rcc, moc = 
+  match Sys.getenv "QT" with 
+  | Some "6" -> "Qt6Quick", "/usr/lib/qt6/libexec/rcc", "/usr/lib/qt6/libexec/moc"
+  | _ -> "Qt5Quick", "rcc", "moc"
+
 let () =
   C.main ~name:"mylib" (fun c ->
       let default : C.Pkg_config.package_conf = { libs = []; cflags = [] } in
@@ -31,16 +36,19 @@ let () =
           | None -> C.die "pkg-config is not available"
           | Some pc -> pc
         in
-        Option.value (C.Pkg_config.query pc ~package:"Qt5Quick") ~default
+        Option.value (C.Pkg_config.query pc ~package:qtquick_pkg) ~default
       in
       let check_which s =
         if Stdlib.Sys.command (Printf.sprintf "which %s-qt5" s) = 0 then
           sprintf "%s-qt5" s
         else s
       in
-      let qmake_bin = check_which "qmake" in
-      write_sexp "moc.sexp" (sexp_of_string @@ check_which "moc");
-      write_sexp "rcc.sexp" (sexp_of_string @@ check_which "rcc");
+      let qmake_bin = check_which (match Sys.getenv "QT" with 
+        | Some "6" -> "qmake6"
+        | _ -> "qmake") 
+      in
+      write_sexp "moc.sexp" (sexp_of_string @@ check_which moc);
+      write_sexp "rcc.sexp" (sexp_of_string @@ check_which rcc);
       write_sexp "qmake.sexp" (sexp_of_string qmake_bin);
 
       let run_qmake ?prefix spec =

dune_test/dune

@@ -1,18 +1,31 @@
-(env(_(flags (-w -34))))
+; (env
+;  (_
+;   (flags
+;    (:standard -w -34))))
+
 (copy_files ui/Root.qml)
 
 (library
  (name mystubs_dune_test)
  (public_name lablqmlDemos.mystubs)
+ (libraries lablqml)
  (modules)
  (foreign_stubs
   (language cxx)
-  (names controller_c moc_controller_c c_c moc_c_c dataItem_c moc_dataItem_c qrc_resources)
+  (names
+   controller_c
+   moc_controller_c
+   c_c
+   moc_c_c
+   dataItem_c
+   moc_dataItem_c
+   qrc_resources)
   (flags
    ((:include %{project_root}/config/c_flags.sexp)
     -fPIC
     -Dprotected=public
-    -std=c++11
+    -std=c++17
+    -I%{project_root}/lib
     -O3)))
  (install_c_headers controller))
 
@@ -28,8 +41,6 @@
     Controller)))
  (link_flags
   (-ccopt
-   -Wl,-no-as-needed
-   -ccopt
    -fPIC
    -cclib
    -lstdc++
@@ -43,25 +54,38 @@
  (targets moc_controller_c.cpp)
  (deps controller.h)
  (action
-  (run moc %{deps} -o %{targets})))
+  (run %{read:../config/moc.sexp} %{deps} -o %{targets})))
 
 (rule
  (targets moc_dataItem_c.cpp)
  (deps dataItem.h)
  (action
-  (run moc %{deps} -o %{targets})))
+  (run %{read:../config/moc.sexp} %{deps} -o %{targets})))
 
 (rule
  (targets moc_c_c.cpp)
  (deps c.h)
  (action
-  (run moc %{deps} -o %{targets})))
+  (run %{read:../config/moc.sexp} %{deps} -o %{targets})))
 
 (rule
- (targets controller_c.cpp controller.h c_c.cpp c.h dataItem.h dataItem_c.cpp)
+ (targets
+  controller_c.cpp
+  controller.h
+  c_c.cpp
+  c.h
+  dataItem.h
+  dataItem_c.cpp)
  (deps Controller.ml)
  (action
-  (run ../ppx/pp/pp_qt.exe -ext cpp %{deps})))
+  (run
+   ../ppx/pp/pp_qt.exe
+   ; -nolocks
+   -tracelocks
+   ;
+   -ext
+   cpp
+   %{deps})))
 
 (rule
  (targets qrc_resources.cpp)

dune_test_515/dune

@@ -8,25 +8,21 @@
 (executable
  (name app)
  (public_name lablqmlDemos.app515)
- (libraries MyControls
-   lablqml lwt.unix threads mystubs_dune_hack)
+ (libraries MyControls lablqml lwt.unix threads mystubs_dune_hack)
  (modules app)
  (flags
   (:standard -w -33-27))
-
  (foreign_stubs
   (language cxx)
   (names qrc_resources proj2_qmltyperegistrations)
   ;; TODO: It iseems dune doesn't know about these two dependecies
   (flags
    ((:include %{project_root}/../config/c_flags.sexp)
     -fPIC
-    -std=c++11
+    -std=c++17
     -O3)))
  (link_flags
   (-ccopt
-   -Wl,-no-as-needed
-   -ccopt
    -fPIC
    -cclib
    -lstdc++
@@ -54,15 +50,13 @@
  (deps stubs/moc_Singleton1_c.cpp.json)
  (action
   (run
-   moc
+   /usr/lib/qt6/libexec/moc
    %{read:../config/I_QT_INSTALL_HEADERS.sexp}
    --collect-json
    %{deps}
    -o
    %{target})))
 
-
-
 ; TODO: generated file should depend on the contents of .qrc file
 ;     xpath -q -e '/RCC/qresource/file/text()' hack/src/resources.qrc
 ; from  the apt package libxml-xpath-perl

dune_test_515/stubs/dune

@@ -2,13 +2,11 @@
  (public_name app.MyControls)
  (name MyControls)
  (modules MyControls)
- (libraries lablqml )
+ (libraries lablqml)
  (preprocess
   (per_module
    ((pps lablqml.ppx)
-    MyControls)))
-)
-
+    MyControls))))
 
 (library
  (name mystubs_dune_hack)
@@ -19,20 +17,21 @@
   (flags
    ((:include %{project_root}/../config/c_flags.sexp)
     -fPIC
-    -std=c++11
+    -std=c++17
     -I.
+    -I%{project_root}/lib/
+    -I../../lib
     -O3)))
  (install_c_headers Singleton1))
 
-
 (rule
  (targets moc_Singleton1_c.cpp moc_Singleton1_c.cpp.json)
  (deps Singleton1.h)
  ;(enabled_if
  ; (>= %{read:QT_VERSION.sexp} 5.15))    ;; Doesn't work
  (action
   (run
-   moc
+   %{read:../../config/moc.sexp}
    %{read:../../config/I_QT_INSTALL_HEADERS.sexp}
    --output-json
    %{deps}
@@ -53,7 +52,7 @@
  (targets moc_myslider_c.cpp)
  (deps myslider.h)
  (action
-  (run moc %{deps} -o %{targets})))
+  (run %{read:../../config/moc.sexp} %{deps} -o %{targets})))
 
 (rule
  (targets myslider_c.cpp myslider.h)

lib/dune

@@ -27,12 +27,12 @@
   (flags
    ((:include %{project_root}/config/c_flags.sexp)
     -Wall
-    -std=c++11
+    -std=c++17
     -O3
     -I
     .
     ; dirty hack next line
-    -Dprivate=public
+    ; -Dprivate=public
     -fPIC)))
  (c_library_flags
   (:include %{project_root}/config/c_library_flags.sexp))