--- setup.py.orig	2009-05-17 18:27:17.000000000 -0500
+++ setup.py	2011-01-22 19:30:06.000000000 -0600
@@ -60,7 +60,7 @@
 png_libs = call_package_config("libpng", "--libs", True)
 
 jpg_lib = "jpeg"
-if os.path.isfile("/usr/include/jpeglib.h"):
+if os.path.isfile("@PREFIX@/include/jpeglib.h"):
     extra_macros.append(('JPG_ENABLED', 1))
     jpg_libs = [ jpg_lib ]
 else: