This is copied verbatim from rdale's email to baserock dev. Will be a table in time. Currently list of gems for rails 3.x, and build rules where necessary.

Note: "cd ." means change directory to checkouts/[gemName]

abstract-1.0.0

actionmailer-3.0.20

actionpack-3.0.20

activemodel-3.0.20

activerecord-3.0.20

activeresource-3.0.20

activesupport-3.0.20

addressable-2.3.6

arel-2.0.10

builder-2.1.2

cocaine-0.1.0

descendants_tracker-0.0.4

dryml-1.3.3

erubis-2.6.6

faraday-0.9.0

git-1.2.8

github_api-0.12.2

hashie-3.3.2

hobo-1.3.3

hobo-jquery-1.3.0pre1

hobo_fields-1.3.3

hobo_support-1.3.3

i18n-0.5.4

jeweler-1.8.3

json-1.8.1

mail-2.2.20

mime-types-1.25.1

mini_portile-0.6.1

 cd . && rake gem

minitest-5.4.3

 rake gem

multi_json-1.10.1

multi_xml-0.5.5

multipart-post-2.0.0

oauth2-1.0.0

pg-0.17.1

 cd . && rake gem

polyglot-0.3.5

 cd . && rake gemspec

 cd . && gem build polyglot.gemspec

racc-1.4.12

 cd . && rake compile

 cd . && rake gem

rack-1.2.8

rack-mount-0.6.14

rack-test-0.5.7

rails-3.0.20

railties-3.0.20

rake-10.4.0

 rake gem

rdoc-3.12.2

 cd . && rake gem

sqlite3-1.3.10

thor-0.14.6

thread_safe-0.3.4

timeliness-0.3.7

treetop-1.4.15

tzinfo-0.3.42

validates_timeliness-3.0.14

will_paginate-3.0.0

The 'rake gem' command builds a gem in a 'pkg' directory, and so the install command needs to be slightly different to the gems built with 'gem build'. For example:

build-commands:
- rake gem
install-commands:
- mkdir -p "$DESTDIR/$(gem environment home)"
- gem install --install-dir "$DESTDIR/$(gem environment home)" --bindir "$DESTDIR/$PREFIX/bin"
  --ignore-dependencies --local ./pkg/rake-10.4.0.gem