filemagic.diff

diff --git a/ext/filemagic/extconf.rb b/ext/filemagic/extconf.rb
index 316e0ab979d243d03a967fda962a43b59a1bbdec..062e91d1023a3363962531fc8a54e7f0feb3bc26 100644
--- a/ext/filemagic/extconf.rb
+++ b/ext/filemagic/extconf.rb
@@ -1,15 +1,11 @@
 require 'mkmf'
 
+# gcc should be able to handle this properly.
 HEADER_DIRS = [
-  '/opt/local/include', # MacPorts
-  '/usr/local/include', # compiled from source and Homebrew
-  '/usr/include',       # system
 ]
 
+# gcc should be able to handle this properly.
 LIB_DIRS = [
-  '/opt/local/lib', # MacPorts
-  '/usr/local/lib', # compiled from source and Homebrew
-  '/usr/lib',       # system
 ]
 
 $CFLAGS << ' -Wall' if ENV['WALL']