Teach Mach-O machinery about bundles

c.f. #12810.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/Library/Homebrew/mach.rb b/Library/Homebrew/mach.rb
index ebbc4b57e..7b9d4d345 100644
--- a/Library/Homebrew/mach.rb
+++ b/Library/Homebrew/mach.rb
@@ -52,6 +52,7 @@ module MachO
         type = case read(4, offset + 12).unpack("N")[0]
           when 0x00000002, 0x02000000 then :executable
           when 0x00000006, 0x06000000 then :dylib
+          when 0x00000008, 0x08000000 then :bundle
           else :dunno
           end
 
@@ -105,4 +106,8 @@ module MachO
   def mach_o_executable?
     mach_data.map{ |m| m.fetch :type }.include? :executable
   end
+
+  def mach_o_bundle?
+    mach_data.map{ |m| m.fetch :type }.include? :bundle
+  end
 end