diff --git a/pkgs/development/interpreters/spidermonkey/builder.sh b/pkgs/development/interpreters/spidermonkey/builder.sh
new file mode 100644
index 000000000000..b0cfe6c9ed62
--- /dev/null
+++ b/pkgs/development/interpreters/spidermonkey/builder.sh
@@ -0,0 +1,31 @@
+source $stdenv/setup
+
+set -e
+set -x
+
+tar zxf $src
+cd js/src
+
+
+# Extend Makefile to dump some of its variables we want to know.
+cat >> Makefile.ref <<EOF
+printlibraries :
+	@echo \$(LIBRARY) \$(SHARED_LIBRARY) > LIBRARIES
+
+printprograms :
+	@echo \$(PROGRAM) > PROGRAMS
+EOF
+
+MAKE="make -f Makefile.ref"
+
+$MAKE printlibraries
+$MAKE printprograms
+$MAKE
+
+ensureDir $out
+ensureDir $out/bin
+ensureDir $out/lib
+
+# Install the binaries that have been created.
+install $(cat PROGRAMS) $out/bin
+install $(cat LIBRARIES) $out/lib
diff --git a/pkgs/development/interpreters/spidermonkey/default.nix b/pkgs/development/interpreters/spidermonkey/default.nix
new file mode 100644
index 000000000000..769d384c9981
--- /dev/null
+++ b/pkgs/development/interpreters/spidermonkey/default.nix
@@ -0,0 +1,11 @@
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
+  name = "spidermonkey-1.5";
+  src = fetchurl {
+    url = http://ftp.uni-erlangen.de/pub/mozilla.org/js/js-1.5.tar.gz;
+    md5 = "863bb6462f4ce535399a7c6276ae6776";
+  };
+
+  builder = ./builder.sh;
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 80c7c2e992e9..28d085a99a41 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -850,6 +850,10 @@ rec {
     inherit fetchurl stdenv;
   };
 
+  spidermonkey = (import ../development/interpreters/spidermonkey) {
+    inherit fetchurl stdenv;
+  };
+
   lua4 = (import ../development/interpreters/lua-4) {
     inherit fetchurl stdenv;
   };