fix qmake bug

lib/qt/qmake.rb

@@ -3,7 +3,6 @@ require 'rubygems/version'
 
 module Qt
   class NotInstalledError < StandardError; end
-
   class Qmake
     class << self
       QMAKES = %w{qmake-qt4 qmake}
@@ -17,14 +16,13 @@ module Qt
       end
 
       def command(project_file = nil)
-
         spec = (case platform
         when :linux
-          "#{path} -spec linux-g++"
+          "linux-g++"
         when :freebsd
-          "#{path} -spec freebsd-g++"
+          "freebsd-g++"
         when :mac_os_x
-          "#{path} -spec macx-g++"
+          "macx-g++"
         end)
 
         command = "#{path} -spec #{spec}"
@@ -99,7 +97,7 @@ module Qt
               %{sudo apt-get install make or sudo yum install make}
             when :freebsd
               %{install /usr/ports/devel/gmake}
-            when :darwin
+            when :mac_os_x
               %{Install XCode, and/or sudo port install make}
             end
           )
@@ -125,7 +123,7 @@ MSG
               <<-MSG
   Install /usr/ports/www/qt4-webkit and /usr/ports/devel/qmake4.
               MSG
-            when :darwin
+            when :mac_os_x
               <<-MSG
   sudo port install qt4-mac (for the patient) or downloading Nokia's pre-built binary
   at http://qt.nokia.com/downloads/