diff --git a/_service b/_service
index 406e727..4602d6b 100644
--- a/_service
+++ b/_service
@@ -2,7 +2,7 @@
   <service name="tar_scm" mode="disabled"><param name="scm">git</param>
     <param name="url">git://github.com/elixir-lang/elixir</param>
     <param name="versionformat">@PARENT_TAG@</param>
-    <param name="revision">v0.12.0</param>
+    <param name="revision">v0.12.3</param>
   </service>
 
   <service name="tar_scm" mode="disabled"><param name="scm">git</param>
diff --git a/elixir-v0.12.0.tar.bz2 b/elixir-v0.12.0.tar.bz2
deleted file mode 100644
index f46dfda..0000000
--- a/elixir-v0.12.0.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d1d72a75eeb6cf69d66240370b8807f11aec4afadaa015914fb4a89d122e170a
-size 767949
diff --git a/elixir-v0.12.3.tar.bz2 b/elixir-v0.12.3.tar.bz2
new file mode 100644
index 0000000..9527053
--- /dev/null
+++ b/elixir-v0.12.3.tar.bz2
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bfab3589e51929643b6305d96211eb53a3c2e9e26b2f83928d8f0a559be54aae
+size 769879
diff --git a/elixir.changes b/elixir.changes
index eeba469..032b575 100644
--- a/elixir.changes
+++ b/elixir.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Thu Feb  6 17:38:37 UTC 2014 - matwey.kornilov@gmail.com
+
+- Add macros.elixir for packaging elixir-packages
+
+-------------------------------------------------------------------
+Thu Feb  6 07:51:55 UTC 2014 - matwey.kornilov@gmail.com
+
+- Update to 0.12.3
+  - number of bugfixes
+  - see CHANGELOG.md for backward incompatibilities
+
 -------------------------------------------------------------------
 Sun Dec 29 16:25:59 FET 2013 - gonzih@gmail.com
 
diff --git a/elixir.spec b/elixir.spec
index 63a412d..a082c97 100644
--- a/elixir.spec
+++ b/elixir.spec
@@ -16,7 +16,7 @@
 #
 
 Name:           elixir
-Version:        0.12.0
+Version:        0.12.3
 Release:        1
 License:        Apache-2.0 and ErlPL-1.1
 Summary:        Functional meta-programming aware language built on top of the Erlang
@@ -24,6 +24,7 @@ Url:            http://elixir-lang.org
 Group:          Development/Languages/Other
 Source0:        elixir-v%{version}.tar.bz2
 Source1:        ex_doc-master.tar.bz2
+Source2:        macros.elixir
 BuildRequires:  erlang make gcc
 # required by Mix.SCM.Git see also (https://github.com/elixir-lang/elixir/issues/1386)
 Requires:       git >= 1.7
@@ -66,6 +67,7 @@ for I in iex elixir elixirc mix
 do
 	ln -sf %{elixirdir}/bin/$I %{buildroot}%{_bindir}/$I
 done
+install -D -m 0644 %{S:2} %{buildroot}%{_sysconfdir}/rpm/macros.elixir
 
 %check
 make test
@@ -84,6 +86,7 @@ make test
 %{elixirdir}/bin/mix
 %{elixirdir}/bin/elixir
 %{elixirdir}/lib/*
+%config %{_sysconfdir}/rpm/macros.elixir
 
 %files doc
 %defattr(-,root,root)
diff --git a/ex_doc-master.tar.bz2 b/ex_doc-master.tar.bz2
index 03a2e9b..bdc4707 100644
--- a/ex_doc-master.tar.bz2
+++ b/ex_doc-master.tar.bz2
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:a17d87a4382ff0f3e1b6faee0ac5d14e262aa6ca1fa092f6c27a5496ca70ada3
-size 1035705
+oid sha256:bfdb1f710469492fba11e49e18c2418eeee749ae41003ade52794b0654026890
+size 83546
diff --git a/macros.elixir b/macros.elixir
new file mode 100644
index 0000000..52a5cb3
--- /dev/null
+++ b/macros.elixir
@@ -0,0 +1,11 @@
+# macros.elixir
+#
+
+%elixir_dir    %{_prefix}/lib/elixir
+%elixir_libdir %{_prefix}/lib/elixir/lib
+%__mix         %{_bindir}/mix
+
+%mix_compile() \
+MIX_ENV=prod %__mix compile \
+%{nil}
+