camlimages: update from 4.0.1 to 4.1.2

Previous version 4.0.1 is kept for OCaml 3.12

pkgs/development/ocaml-modules/camlimages/4.1.nix

@@ -0,0 +1,38 @@
+{stdenv, fetchurl, omake, ocaml, omake_rc1, libtiff, libjpeg, libpng, giflib, findlib, libXpm, freetype, graphicsmagick, ghostscript }:
+
+assert stdenv.lib.versionAtLeast (stdenv.lib.getVersion ocaml) "4.00";
+
+let
+  pname = "camlimages";
+  version = "4.1.2";
+in
+
+stdenv.mkDerivation {
+  name = "${pname}-${version}";
+
+  src = fetchurl {
+    url = "https://bitbucket.org/camlspotter/camlimages/get/${version}.tar.bz2";
+    sha256 = "1ppddhfknpirj1vilm5dxgyp82kf7ahpvjmh7z75a1fnaqv3kpki";
+  };
+
+  buildInputs = [ocaml omake_rc1 findlib graphicsmagick ghostscript ];
+
+  propagatedBuildInputs = [libtiff libjpeg libpng giflib freetype libXpm ];
+
+  createFindlibDestdir = true;
+
+  buildPhase = ''
+    omake
+  '';
+
+  installPhase = ''
+    omake install
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = https://bitbucket.org/camlspotter/camlimages;
+    description = "OCaml image processing library";
+    license = licenses.lgpl2;
+    maintainers = [ maintainers.vbgl ];
+  };
+}