ocamlPackages: add meta.mainProgram to packages with multiple executables

where none of the executables match the package's `name` or `pname`, and
one of the executables is the obvious `mainProgram`.

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

@@ -75,7 +75,8 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "Platform for binary analysis. It is written in OCaml, but can be used from other languages.";
     homepage = "https://github.com/BinaryAnalysisPlatform/bap/";
-    maintainers = [ maintainers.maurer ];
     license = licenses.mit;
+    maintainers = [ maintainers.maurer ];
+    mainProgram = "bap";
   };
 }

pkgs/development/ocaml-modules/dns/cli.nix

@@ -44,5 +44,6 @@ buildDunePackage {
 
   meta = dns.meta // {
     description = "Unix command line utilities using uDNS";
+    mainProgram = "odns";
   };
 }

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

@@ -21,8 +21,9 @@ buildDunePackage rec {
 
   meta = {
     description = "Parser combinators based on Earley Algorithm";
+    homepage = "https://github.com/rlepigre/ocaml-earley";
     license = lib.licenses.cecill-b;
     maintainers = [ lib.maintainers.vbgl ];
-    homepage = "https://github.com/rlepigre/ocaml-earley";
+    mainProgram = "pa_ocaml";
   };
 }

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

@@ -35,5 +35,6 @@ buildDunePackage rec {
     homepage = "https://github.com/dinosaure/hxd";
     license = licenses.mit;
     maintainers = [ maintainers.sternenseemann ];
+    mainProgram = "hxd.xxd";
   };
 }

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

@@ -21,8 +21,9 @@ buildDunePackage rec {
 
   meta = {
     description = "Image formats such as PNG and PPM in OCaml";
+    homepage = "https://github.com/rlepigre/ocaml-imagelib";
     license = lib.licenses.lgpl3;
     maintainers = [ lib.maintainers.vbgl ];
-    homepage = "https://github.com/rlepigre/ocaml-imagelib";
+    mainProgram = "imagetool";
   };
 }

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

@@ -37,12 +37,11 @@ stdenv.mkDerivation {
   dontStrip = true;
 
   meta = with lib; {
-    inherit (ocaml.meta) platforms;
-    maintainers = with maintainers; [
-      maggesi roconnor vbgl
-    ];
-    homepage = "http://lablgtk.forge.ocamlcore.org/";
     description = "An OCaml interface to GTK";
+    homepage = "http://lablgtk.forge.ocamlcore.org/";
     license = licenses.lgpl21Plus;
+    maintainers = with maintainers; [ maggesi roconnor vbgl ];
+    mainProgram = "lablgtk2";
+    inherit (ocaml.meta) platforms;
   };
 }

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

@@ -31,10 +31,11 @@ buildDunePackage rec {
   '';
 
   meta = {
-    homepage = "https://github.com/realworldocaml/mdx";
     description = "Executable OCaml code blocks inside markdown files";
+    homepage = "https://github.com/realworldocaml/mdx";
     changelog = "https://github.com/realworldocaml/mdx/raw/${version}/CHANGES.md";
     license = lib.licenses.isc;
     maintainers = [ lib.maintainers.romildo ];
+    mainProgram = "ocaml-mdx";
   };
 }

pkgs/development/ocaml-modules/ocaml-gettext/camomile.nix

@@ -9,7 +9,7 @@ buildDunePackage {
   doCheck = true;
   checkInputs = [ ounit fileutils ];
 
-  meta = ocaml_gettext.meta // {
+  meta = (builtins.removeAttrs ocaml_gettext.meta  [ "mainProgram" ]) // {
     description = "Internationalization library using camomile (i18n)";
   };
 

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

@@ -28,5 +28,6 @@ buildDunePackage rec {
     homepage = "https://github.com/gildor478/ocaml-gettext";
     license = licenses.lgpl21;
     maintainers = [ maintainers.volth ];
+    mainProgram = "ocaml-gettext";
   };
 }

pkgs/development/ocaml-modules/ocaml-gettext/stub.nix

@@ -4,7 +4,7 @@ buildDunePackage rec {
 
   pname = "gettext-stub";
 
-  inherit (ocaml_gettext) src version useDune2 meta;
+  inherit (ocaml_gettext) src version useDune2;
 
   buildInputs = [ dune-configurator ];
 
@@ -13,4 +13,6 @@ buildDunePackage rec {
   doCheck = true;
 
   checkInputs = [ ounit ];
+
+  meta = builtins.removeAttrs ocaml_gettext.meta  [ "mainProgram" ];
 }

pkgs/development/ocaml-modules/ocp-ocamlres/default.nix

@@ -26,9 +26,10 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A simple tool and library to embed files and directories inside OCaml executables";
-    license = lib.licenses.lgpl3Plus;
     homepage = "https://www.typerex.org/ocp-ocamlres.html";
+    license = lib.licenses.lgpl3Plus;
     maintainers = [ lib.maintainers.vbgl ];
+    mainProgram = "ocp-ocamlres";
     inherit (ocaml.meta) platforms;
   };
 }

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

@@ -15,9 +15,10 @@ buildOasisPackage rec {
   propagatedBuildInputs = [ tcslib ocaml-sat-solvers ];
 
   meta = {
-    homepage = "https://github.com/tcsprojects/pgsolver";
     description = "A collection of tools for generating, manipulating and - most of all - solving parity games";
+    homepage = "https://github.com/tcsprojects/pgsolver";
     license = lib.licenses.bsd3;
     maintainers = with lib.maintainers; [ mgttlinger ];
+    mainProgram = "pgsolver-bin";
   };
 }

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

@@ -16,7 +16,8 @@ buildDunePackage rec {
   meta = with lib; {
     description = "Cubic bezier implementation in Reason / OCaml";
     homepage = "https://github.com/jchavarri/rebez/";
-    maintainers = with maintainers; [ superherointj ];
     license = licenses.mit;
+    maintainers = with maintainers; [ superherointj ];
+    mainProgram = "RebezApp.exe";
   };
 }

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

@@ -27,10 +27,11 @@ stdenv.mkDerivation rec {
   dontStrip = true;
 
   meta = with lib; {
-    homepage = "http://people.csail.mit.edu/mikelin/ocaml+twt/";
     description = "“The Whitespace Thing” for OCaml";
+    homepage = "http://people.csail.mit.edu/mikelin/ocaml+twt/";
     license = licenses.mit;
     maintainers = [ maintainers.vbgl ];
-    platforms = ocaml.meta.platforms or [ ];
+    mainProgram = "ocaml+twt";
+    inherit (ocaml.meta) platforms;
   };
 }

pkgs/development/tools/ocaml/js_of_ocaml/camlp4.nix

@@ -15,7 +15,7 @@ buildDunePackage rec {
     sha256 = "1v2hfq0ra9j07yz6pj6m03hrvgys4vmx0gclchv94yywpb2wc7ik";
   };
 
-  inherit (js_of_ocaml-compiler) meta;
-
   buildInputs = [ camlp4 ocsigen_deriving ];
+
+  meta = builtins.removeAttrs js_of_ocaml-compiler.meta [ "mainProgram" ];
 }

pkgs/development/tools/ocaml/js_of_ocaml/compiler.nix

@@ -21,8 +21,9 @@ buildDunePackage rec {
 
   meta = {
     description = "Compiler from OCaml bytecode to Javascript";
+    homepage = "https://ocsigen.org/js_of_ocaml/";
     license = lib.licenses.gpl2;
     maintainers = [ lib.maintainers.vbgl ];
-    homepage = "https://ocsigen.org/js_of_ocaml/";
+    mainProgram = "js_of_ocaml";
   };
 }

pkgs/development/tools/ocaml/js_of_ocaml/default.nix

@@ -5,9 +5,11 @@
 buildDunePackage {
   pname = "js_of_ocaml";
 
-  inherit (js_of_ocaml-compiler) version src meta useDune2;
+  inherit (js_of_ocaml-compiler) version src useDune2;
 
   buildInputs = [ ppxlib ];
 
   propagatedBuildInputs = [ js_of_ocaml-compiler uchar ];
+
+  meta = builtins.removeAttrs js_of_ocaml-compiler.meta [ "mainProgram" ];
 }

pkgs/development/tools/ocaml/js_of_ocaml/lwt.nix

@@ -5,9 +5,11 @@
 buildDunePackage {
   pname = "js_of_ocaml-lwt";
 
-  inherit (js_of_ocaml-compiler) version src meta useDune2;
+  inherit (js_of_ocaml-compiler) version src useDune2;
 
   buildInputs = [ js_of_ocaml-ppx ];
 
   propagatedBuildInputs = [ js_of_ocaml ocaml_lwt lwt_log ];
+
+  meta = builtins.removeAttrs js_of_ocaml-compiler.meta [ "mainProgram" ];
 }

pkgs/development/tools/ocaml/js_of_ocaml/ppx.nix

@@ -6,8 +6,10 @@
 buildDunePackage {
   pname = "js_of_ocaml-ppx";
 
-  inherit (js_of_ocaml-compiler) version src meta useDune2;
+  inherit (js_of_ocaml-compiler) version src useDune2;
 
   buildInputs = [ js_of_ocaml ];
   propagatedBuildInputs = [ ppxlib ];
+
+  meta = builtins.removeAttrs js_of_ocaml-compiler.meta [ "mainProgram" ];
 }

pkgs/development/tools/ocaml/js_of_ocaml/ppx_deriving_json.nix

@@ -5,7 +5,9 @@
 buildDunePackage {
   pname = "js_of_ocaml-ppx_deriving_json";
 
-  inherit (js_of_ocaml-compiler) version src meta useDune2;
+  inherit (js_of_ocaml-compiler) version src useDune2;
 
   propagatedBuildInputs = [ js_of_ocaml ppxlib ];
+
+  meta = builtins.removeAttrs js_of_ocaml-compiler.meta [ "mainProgram" ];
 }

pkgs/development/tools/ocaml/js_of_ocaml/tyxml.nix

@@ -6,9 +6,11 @@
 buildDunePackage {
   pname = "js_of_ocaml-tyxml";
 
-  inherit (js_of_ocaml-compiler) version src meta useDune2;
+  inherit (js_of_ocaml-compiler) version src useDune2;
 
   buildInputs = [ js_of_ocaml-ppx ];
 
   propagatedBuildInputs = [ js_of_ocaml reactivedata tyxml ];
+
+  meta = builtins.removeAttrs js_of_ocaml-compiler.meta [ "mainProgram" ];
 }

pkgs/development/tools/ocaml/ocamlbuild/default.nix

@@ -31,10 +31,11 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage = "https://github.com/ocaml/ocamlbuild/";
     description = "A build system with builtin rules to easily build most OCaml projects";
+    homepage = "https://github.com/ocaml/ocamlbuild/";
     license = licenses.lgpl2;
-    inherit (ocaml.meta) platforms;
     maintainers = with maintainers; [ vbgl ];
+    mainProgram = "ocamlbuild";
+    inherit (ocaml.meta) platforms;
   };
 }

pkgs/development/tools/ocaml/ocp-build/default.nix

@@ -24,7 +24,6 @@ stdenv.mkDerivation rec {
   preInstall = "mkdir -p $out/bin";
 
   meta = with lib; {
-    homepage = "https://www.typerex.org/ocp-build.html";
     description = "A build tool for OCaml";
     longDescription = ''
       ocp-build is a build system for OCaml application, based on simple
@@ -33,8 +32,10 @@ stdenv.mkDerivation rec {
       the number of cores and the automatically-inferred dependencies
       between source files.
     '';
+    homepage = "https://www.typerex.org/ocp-build.html";
     license = licenses.gpl3;
-    platforms = ocaml.meta.platforms or [];
     maintainers = [ maintainers.jirkamarsik ];
+    mainProgram = "ocp-build";
+    inherit (ocaml.meta) platforms;
   };
 }