Update release steps to rebuild build_info

Author: José Valim

Makefile

@@ -1,5 +1,5 @@
 REBAR := rebar
-ELIXIRC := bin/elixirc --verbose --ignore-module-conflict $(ELIXIRC_OPTS)
+ELIXIRC := bin/elixirc --verbose --ignore-module-conflict
 ERLC := erlc -I lib/elixir/include
 ERL := erl -I lib/elixir/include -noshell -pa lib/elixir/ebin
 VERSION := $(strip $(shell cat VERSION))
@@ -125,6 +125,9 @@ docs: compile ../ex_doc/bin/ex_doc
 	@ echo "ex_doc is not found in ../ex_doc as expected. See README for more information."
 	@ false
 
+build_info:
+	$(ELIXIRC) lib/elixir/lib/system.ex -o lib/elixir/ebin
+
 release_zip: compile
 	rm -rf v$(VERSION).zip
 	zip -9 -r v$(VERSION).zip bin CHANGELOG.md LEGAL lib/*/ebin LICENSE README.md VERSION

RELEASE.md

@@ -12,17 +12,19 @@ This document simply outlines the release process:
 
 5) Push master and create tag vVERSION from master branch
 
-6) Release new docs with `make release_docs`, move docs to `docs/stable`
+6) Update build info to include tag: `make build_info`
 
-7) Release new zip with `make release_zip`, push new zip to GitHub Releases
+7) Release new docs with `make release_docs`, move docs to `docs/stable`
 
-8) Push package to expm with `expm publish package.exs`
+8) Release new zip with `make release_zip`, push new zip to GitHub Releases
 
-9) Merge master into stable branch and push it
+9) Push package to expm with `expm publish package.exs`
 
-10) After release, bump versions, add `-dev` back and commit
+10) Merge master into stable branch and push it
 
-11) `make release_docs` once again and push `elixir-lang.github.com`
+11) After release, bump versions, add `-dev` back and commit
+
+12) `make release_docs` once again and push it to `elixir-lang.github.com`
 
 ## Places where version is mentioned