DRY out the X11 detection code

1 files changed, 6 insertions, 2 deletions

diff --git a/Library/Formula/qt.rb b/Library/Formula/qt.rb
index e7a4b847e..c5057bc71 100644
--- a/Library/Formula/qt.rb
+++ b/Library/Formula/qt.rb
@@ -16,10 +16,14 @@ class Qt <Formula
       ['--with-qt3support', "Enable deprecated Qt3Support module."],
     ]
   end
+  
+  def self.x11?
+    File.exist? "/usr/X11R6/lib"
+  end
 
   depends_on "dbus" if ARGV.include? '--with-dbus'
   depends_on "dbus" if ARGV.include? '--with-qt3support'
-  depends_on 'libpng' unless File.exist? "/usr/X11R6/lib"
+  depends_on 'libpng' unless x11?
 
   def install
     if version == '4.5.3'
@@ -48,7 +52,7 @@ class Qt <Formula
       conf_args << "-no-qt3support"
     end
 
-    if File.exist? "/usr/X11R6/lib"
+    if x11?
       conf_args << "-L/usr/X11R6/lib"
       conf_args << "-I/usr/X11R6/include"
     else