Move stdlib tracking postinstall

This moves stdlib tracking after the install completes, which allows
the tracking to have access to the actual stdlib in use.

This unfortunately means that builds can error out *after* a build,
resulting in wasted time; however, it reduces false positives, and the
overall user experience is still likely to be better this way.

1 files changed, 3 insertions, 2 deletions

diff --git a/Library/Homebrew/tab.rb b/Library/Homebrew/tab.rb
index 708e10346..5e4d24693 100644
--- a/Library/Homebrew/tab.rb
+++ b/Library/Homebrew/tab.rb
@@ -10,7 +10,7 @@ require 'utils/json'
 class Tab < OpenStruct
   FILENAME = 'INSTALL_RECEIPT.json'
 
-  def self.create f, compiler, args
+  def self.create f, compiler, stdlib, args
     f.build.args = args
 
     sha = HOMEBREW_REPOSITORY.cd do
@@ -25,7 +25,8 @@ class Tab < OpenStruct
             :tapped_from => f.tap,
             :time => Time.now.to_i, # to_s would be better but Ruby has no from_s function :P
             :HEAD => sha,
-            :compiler => compiler
+            :compiler => compiler,
+            :stdlib => stdlib
   end
 
   def self.from_file path