Merge pull request #43440 from vbgl/ocaml-lwt_log-1.0.0

ocamlPackages.lwt_log: init at 1.0.0

pkgs/development/ocaml-modules/lwt/default.nix

@@ -1,6 +1,8 @@
 { stdenv, fetchzip, pkgconfig, ncurses, libev, jbuilder
-, ocaml, findlib, camlp4, cppo
+, ocaml, findlib, cppo
 , ocaml-migrate-parsetree, ppx_tools_versioned, result
+, withP4 ? !stdenv.lib.versionAtLeast ocaml.version "4.07"
+, camlp4 ? null
 }:
 
 stdenv.mkDerivation rec {
@@ -13,12 +15,13 @@ stdenv.mkDerivation rec {
   };
 
   preConfigure = ''
-    ocaml src/util/configure.ml -use-libev true -use-camlp4 true
+    ocaml src/util/configure.ml -use-libev true -use-camlp4 ${if withP4 then "true" else "false"}
   '';
 
   nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [ ncurses ocaml findlib jbuilder camlp4 cppo
-    ocaml-migrate-parsetree ppx_tools_versioned ];
+  buildInputs = [ ncurses ocaml findlib jbuilder cppo
+    ocaml-migrate-parsetree ppx_tools_versioned ]
+  ++ stdenv.lib.optional withP4 camlp4;
   propagatedBuildInputs = [ libev result ];
 
   installPhase = ''

pkgs/development/ocaml-modules/lwt_log/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, ocaml, findlib, jbuilder, lwt }:
+
+stdenv.mkDerivation rec {
+  version = "1.0.0";
+  name = "ocaml${ocaml.version}-lwt_log-${version}";
+
+  inherit (lwt) src;
+
+  buildInputs = [ ocaml findlib jbuilder ];
+
+  propagatedBuildInputs = [ lwt ];
+
+  buildPhase = "jbuilder build -p lwt_log";
+
+  inherit (jbuilder) installPhase;
+
+  meta = {
+    description = "Lwt logging library (deprecated)";
+    homepage = "https://github.com/aantron/lwt_log";
+    license = stdenv.lib.licenses.lgpl21;
+    inherit (ocaml.meta) platforms;
+    maintainers = [ stdenv.lib.maintainers.vbgl ];
+  };
+}