diff --git a/pkgs/development/libraries/libticalcs2/default.nix b/pkgs/development/libraries/libticalcs2/default.nix
new file mode 100644
index 00000000000..6eb013a7ffd
--- /dev/null
+++ b/pkgs/development/libraries/libticalcs2/default.nix
@@ -0,0 +1,50 @@
+{ stdenv
+, lib
+, fetchurl
+, pkg-config
+, autoreconfHook
+, glib
+, libticonv
+, libtifiles2
+, libticables2
+, lzma
+, bzip2
+, acl
+, libobjc
+}:
+
+stdenv.mkDerivation rec {
+  pname = "libticalcs2";
+  version = "1.1.9";
+  src = fetchurl {
+    url = "mirror://sourceforge/tilp/${pname}-${version}.tar.bz2";
+    sha256 = "08c9wgrdnyqcs45mx1bjb8riqq81bzfkhgaijxzn96rhpj40fy3n";
+  };
+
+  nativeBuildInputs = [
+    autoreconfHook
+    pkg-config
+  ];
+
+  buildInputs = [
+    glib
+    libticonv
+    libtifiles2
+    libticables2
+    lzma
+    bzip2
+  ] ++ lib.optionals stdenv.isLinux [
+    acl
+  ] ++ lib.optionals stdenv.isDarwin [
+    libobjc
+  ];
+
+  meta = with lib; {
+    changelog = "http://lpg.ticalc.org/prj_tilp/news.html";
+    description = "This library is part of the TiLP framework";
+    homepage = "http://lpg.ticalc.org/prj_tilp/";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ siraben luc65r ];
+    platforms = with platforms; linux ++ darwin;
+  };
+}
diff --git a/pkgs/misc/emulators/tilem/default.nix b/pkgs/misc/emulators/tilem/default.nix
index fcd37ab24e3..d2252563d0a 100644
--- a/pkgs/misc/emulators/tilem/default.nix
+++ b/pkgs/misc/emulators/tilem/default.nix
@@ -1,30 +1,14 @@
 { stdenv
 , fetchurl
 , lib
-, autoreconfHook
 , pkg-config
 , glib
-, darwin
-, acl
 , gnome2
 , libticonv
 , libtifiles2
 , libticables2
+, libticalcs2
 }:
-let
-  libticalcs2 = stdenv.mkDerivation rec {
-    pname = "libticalcs2";
-    version = "1.1.9";
-    src = fetchurl {
-      url = "mirror://sourceforge/tilp/${pname}-${version}.tar.bz2";
-      sha256 = "08c9wgrdnyqcs45mx1bjb8riqq81bzfkhgaijxzn96rhpj40fy3n";
-    };
-    nativeBuildInputs = [ autoreconfHook pkg-config ];
-    buildInputs = [ glib libticables2 libticonv libtifiles2 lzma bzip2 ]
-      ++ lib.optionals stdenv.isLinux [ acl ]
-      ++ lib.optionals stdenv.isDarwin [ darwin.libobjc ];
-  };
-in
 
 stdenv.mkDerivation rec {
   pname = "tilem";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 259bfd33284..fa622e4f7cd 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15272,6 +15272,10 @@ in
 
   libticables2 = callPackage ../development/libraries/libticables2 { };
 
+  libticalcs2 = callPackage ../development/libraries/libticalcs2 {
+    inherit (darwin) libobjc;
+  };
+
   libticonv = callPackage ../development/libraries/libticonv { };
 
   libtifiles2 = callPackage ../development/libraries/libtifiles2 { };