2 files changed, 21 insertions, 3 deletions
diff --git a/railties/lib/tasks/gems.rake b/railties/lib/tasks/gems.rake
index ed07bf2016..efadb1da3b 100644
--- a/railties/lib/tasks/gems.rake
+++ b/railties/lib/tasks/gems.rake
@@ -20,8 +20,16 @@ namespace :gems do
   desc "Build any native extensions for unpacked gems"
   task :build do
     $gems_build_rake_task = true
-    Rake::Task['gems:unpack'].invoke
-    current_gems.each &:build
+    frozen_gems.each &:build
+  end
+
+  namespace :build do
+    desc "Force the build of all gems"
+    task :force do
+      $gems_build_rake_task = true
+      Rake::Task['gems:unpack'].invoke
+      current_gems.each { |gem| gem.build(:force => true) }
+    end
   end
 
   desc "Installs all required gems."
@@ -53,6 +61,12 @@ def current_gems
   gems
 end
 
+def frozen_gems
+  Dir[File.join(RAILS_ROOT, 'vendor', 'gems', '*-*')].map do |gem_dir|
+    Rails::GemDependency.from_directory_name(gem_dir)
+  end
+end
+
 def print_gem_status(gem, indent=1)
   code = case
     when gem.framework_gem? then 'R'
diff --git a/railties/lib/tasks/misc.rake b/railties/lib/tasks/misc.rake
index 9e6f96db5b..a2c338aa5b 100644
--- a/railties/lib/tasks/misc.rake
+++ b/railties/lib/tasks/misc.rake
@@ -12,10 +12,10 @@ end
 
 desc 'Generate a crytographically secure secret key. This is typically used to generate a secret for cookie sessions.'
 task :secret do
+  require 'active_support/secure_random'
   puts ActiveSupport::SecureRandom.hex(64)
 end
 
-require 'active_support'
 namespace :time do
   namespace :zones do
     desc 'Displays names of all time zones recognized by the Rails TimeZone class, grouped by offset. Results can be filtered with optional OFFSET parameter, e.g., OFFSET=-6'
@@ -30,6 +30,8 @@ namespace :time do
     
     desc 'Displays names of time zones recognized by the Rails TimeZone class with the same offset as the system local time'
     task :local do
+      require 'active_support'
+      require 'active_support/core/time'
       jan_offset = Time.now.beginning_of_year.utc_offset
       jul_offset = Time.now.beginning_of_year.change(:month => 7).utc_offset
       offset = jan_offset < jul_offset ? jan_offset : jul_offset
@@ -38,6 +40,8 @@ namespace :time do
     
     # to find UTC -06:00 zones, OFFSET can be set to either -6, -6:00 or 21600
     def build_time_zone_list(method, offset = ENV['OFFSET'])
+      require 'active_support'
+      require 'active_support/core/time'
       if offset
         offset = if offset.to_s.match(/(\+|-)?(\d+):(\d+)/)
           sign = $1 == '-' ? -1 : 1