ocamlscript: new derivation

Ocamlscript compiles scripts, i.e. one-file programs, into
natively-compiled binaries, and executes them.

Homepage: http://mjambon.com/ocamlscript.html

pkgs/development/tools/ocaml/ocamlscript/Makefile.patch

@@ -0,0 +1,25 @@
+--- a/Makefile	2012-02-04 01:24:21.000000000 +0000
++++ b/Makefile	2014-10-29 14:42:08.690188302 +0000
+@@ -4,6 +4,8 @@
+   version.ml pipeline.mli pipeline.ml common.mli common.ml \
+   utils.mli utils.ml ocaml.mli ocaml.ml
+ 
++CAMLP4 := $(shell ocamlfind query camlp4)
++
+ STDBIN = $(shell dirname `which ocamlfind`)
+ ifndef PREFIX
+   PREFIX = $(shell dirname $(STDBIN))
+@@ -36,11 +38,11 @@
+ 
+ common: version.ml
+ 	ocamlc -pp 'camlp4orf -loc _loc' -c \
+-		-I +camlp4 pa_opt310.ml && \
++		-I $(CAMLP4) pa_opt310.ml && \
+ 		cp pa_opt310.cmo pa_opt.cmo && \
+ 		cp pa_opt310.cmi pa_opt.cmi
+ 	ocamlc -pp 'camlp4orf -loc _loc' -c \
+-		-I +camlp4 pa_tryfinally310.ml && \
++		-I $(CAMLP4) pa_tryfinally310.ml && \
+ 		cp pa_tryfinally310.cmo pa_tryfinally.cmo && \
+ 		cp pa_tryfinally310.cmi pa_tryfinally.cmi
+ 

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

@@ -0,0 +1,26 @@
+{stdenv, fetchurl, ocaml, findlib, camlp4}:
+stdenv.mkDerivation {
+  name = "ocamlscript-2.0.3";
+  src = fetchurl {
+    url = http://mjambon.com/releases/ocamlscript/ocamlscript-2.0.3.tar.gz;
+    sha256 = "1v1i24gijxwris8w4hi95r9swld6dm7jbry0zp72767a3g5ivlrd";
+  };
+
+  buildInputs = [ ocaml findlib camlp4 ];
+
+  patches = [ ./Makefile.patch ];
+
+  buildFlags = "PREFIX=$(out)";
+  installFlags = "PREFIX=$(out)";
+
+  preInstall = "mkdir $out/bin";
+  createFindlibDestdir = true;
+
+  meta = with stdenv.lib; {
+    homepage = http://martin.jambon.free.fr/ocamlscript.html;
+    license = licenses.boost;
+    platforms = ocaml.meta.platforms;
+    description = "Natively-compiled OCaml scripts";
+    maintainers = [ maintainers.vbgl ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -3645,6 +3645,8 @@ let
     ocaml_react = callPackage ../development/ocaml-modules/react { };
     reactivedata = callPackage ../development/ocaml-modules/reactivedata {};
 
+    ocamlscript = callPackage ../development/tools/ocaml/ocamlscript { };
+
     ocamlsdl= callPackage ../development/ocaml-modules/ocamlsdl { };
 
     ocaml_sqlite3 = callPackage ../development/ocaml-modules/sqlite3 { };