1 files changed, 63 insertions, 0 deletions
diff --git a/pkgs/development/compilers/opa/default.nix b/pkgs/development/compilers/opa/default.nix
new file mode 100644
index 000000000000..6df16e44c3d4
--- /dev/null
+++ b/pkgs/development/compilers/opa/default.nix
@@ -0,0 +1,63 @@
+{ stdenv, fetchurl, which, ocaml, perl, jdk
+, findlib, ocaml_ssl, openssl, cryptokit, camlzip, ulex
+, ocamlgraph, coreutils, zlib, ncurses, makeWrapper
+, gcc, binutils, gnumake } :
+
+stdenv.mkDerivation rec {
+  pname = "opa";
+  version = "962";
+  name = "${pname}-${version}";
+
+  src = fetchurl {
+    url = "https://github.com/MLstate/opalang/tarball/v${version}";
+    name = "opa-${version}.tar.gz";
+    sha256 = "0g4kq2kxbld0iqlzb076b7g43d8fh4sfxam615z15mbk1jcvpf9l";
+  };
+
+  # Paths so the opa compiler code generation will use the same programs as were
+  # used to build opa.
+  codeGeneratorPaths = "${ocaml}/bin:${gcc}/bin:${binutils}/bin:${gnumake}/bin";
+
+  prePatch = ''
+    find . -type f -exec sed -i 's@/usr/bin/env@${coreutils}/bin/env@' {} \;
+    find . -type f -exec sed -i 's@/usr/bin/perl@${perl}/bin/perl@' {} \;
+  '';
+
+  patches = [ ./locate.patch ./libdir.patch ];
+
+  preConfigure = ''
+    configureFlags="$configureFlags -prefix $out"
+  '';
+
+  dontAddPrefix = true;
+
+  configureFlags = "-ocamlfind ${findlib}/bin/ocamlfind -openssl ${openssl}/lib";
+
+  buildInputs = [ which ocaml perl jdk findlib ocaml_ssl openssl cryptokit camlzip ulex
+                  ocamlgraph coreutils zlib ncurses makeWrapper gcc binutils gnumake ];
+
+  postInstall = ''
+    # Have compiler use same tools for code generation as used to build it.
+    for p in $out/bin/opa ; do
+      wrapProgram $p --prefix PATH ":" "${codeGeneratorPaths}" ;
+    done
+
+    # Install emacs mode.
+    ensureDir $out/share/emacs/site-lisp/opa
+    install -m 0644 -v ./utils/emacs/{opa-mode.el,site-start.el} $out/share/emacs/site-lisp/opa
+  '';
+
+  meta = {
+    description = "Opa is a concise and elegant language for writing distributed web applications. Both client and server sides.";
+    longDescription = ''
+    Opa is a new generation of web development platform that lets you write distributed
+    web applications using a single technology. Among the the many features of Opa are these:
+    Opa is concise, simple, concurrent, dynamically distributed, and secure.
+    '';
+
+    homepage = http://opalang.org/;
+    license = stdenv.lib.licenses.gpl3;
+    maintainers = [ stdenv.lib.maintainers.kkallio ];
+    platforms = [ "x86_64-linux" ];
+  };
+}