--- nmake.opt.orig  2016-05-03 08:03:33.803331828 +1000
+++ nmake.opt   2016-05-03 08:03:54.627331424 +1000
@@ -247,7 +247,7 @@
 JPEG_SUPPORTED = 1

 # This will enable 12bit libjpeg - use only with internal jpeg builds.
-JPEG12_SUPPORTED = 1
+#JPEG12_SUPPORTED = 1

 #if using an external jpeg library uncomment the following lines
 #JPEG_EXTERNAL_LIB = 1