diff --git a/pkgs/development/libraries/clucene-core/2.x.nix b/pkgs/development/libraries/clucene-core/2.x.nix
index 60e8da9c3fc8..4173b75915cb 100644
--- a/pkgs/development/libraries/clucene-core/2.x.nix
+++ b/pkgs/development/libraries/clucene-core/2.x.nix
@@ -20,6 +20,12 @@ stdenv.mkDerivation rec {
       ./Install-contribs-lib.patch
     ];
 
+  postInstall = stdenv.lib.optionalString stdenv.isDarwin ''
+    install_name_tool -change libclucene-shared.1.dylib \
+        $out/lib/libclucene-shared.1.dylib \
+        $out/lib/libclucene-core.1.dylib
+  '';
+
   meta = {
     description = "Core library for full-featured text search engine";
     longDescription = ''
diff --git a/pkgs/servers/mail/dovecot/2.2.x.nix b/pkgs/servers/mail/dovecot/2.2.x.nix
index 2b1aca3e9269..40af354a7f99 100644
--- a/pkgs/servers/mail/dovecot/2.2.x.nix
+++ b/pkgs/servers/mail/dovecot/2.2.x.nix
@@ -1,10 +1,11 @@
 { stdenv, fetchurl, perl, systemd, openssl, pam, bzip2, zlib, openldap
-, inotifyTools }:
+, inotifyTools, clucene_core_2 }:
 
 stdenv.mkDerivation rec {
   name = "dovecot-2.2.12";
 
-  buildInputs = [perl systemd openssl pam bzip2 zlib openldap inotifyTools];
+  buildInputs = [perl openssl bzip2 zlib openldap clucene_core_2]
+    ++ stdenv.lib.optionals (stdenv.isLinux) [ systemd pam inotifyTools ];
 
   src = fetchurl {
     url = "http://dovecot.org/releases/2.2/${name}.tar.gz";
@@ -16,6 +17,15 @@ stdenv.mkDerivation rec {
       "/usr/bin/env perl" "${perl}/bin/perl"
   '';
 
+  postInstall = stdenv.lib.optionalString stdenv.isDarwin ''
+    install_name_tool -change libclucene-shared.1.dylib \
+        ${clucene_core_2}/lib/libclucene-shared.1.dylib \
+        $out/lib/dovecot/lib21_fts_lucene_plugin.so
+    install_name_tool -change libclucene-core.1.dylib \
+        ${clucene_core_2}/lib/libclucene-core.1.dylib \
+        $out/lib/dovecot/lib21_fts_lucene_plugin.so
+  '';
+
   patches = [
     # Make dovecot look for plugins in /var/lib/dovecot/modules
     # so we can symlink plugins from several packages there
@@ -28,14 +38,20 @@ stdenv.mkDerivation rec {
     # It will hardcode this for /var/lib/dovecot.
     # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626211
     "--localstatedir=/var"
-    "--with-systemdsystemunitdir=$(out)/etc/systemd/system"
     "--with-ldap"
+    "--with-lucene"
+    "--with-ssl=openssl"
+    "--with-sqlite"
+    "--with-zlib"
+    "--with-bzlib"
+  ] ++ stdenv.lib.optionals (stdenv.isLinux) [
+    "--with-systemdsystemunitdir=$(out)/etc/systemd/system"
   ];
 
   meta = {
     homepage = "http://dovecot.org/";
     description = "Open source IMAP and POP3 email server written with security primarily in mind";
     maintainers = with stdenv.lib.maintainers; [viric simons rickynils];
-    platforms = with stdenv.lib.platforms; linux;
+    platforms = stdenv.lib.platforms.unix;
   };
 }