For the broadest possible support for OJPEG files the following steps are necessary: o Ensure you are able to build with JPEG support (see config.site). o Uncomment OJPEG="yes" statement in config.site file or   #define OJPEG_SUPPORT somewhere.  This can be put in tiffconf.h for   instance. o Append the jdhuff_add.c code to the end of jdhuff.c within the IJG JPEG   libraries jdhuff.c file and recompile libjpeg (jpeg-6b tested). o Rebuild cleanly.OJPEG support implemented by Scott Marovich at HP (marovich@hpl.hp.com).---For notes on further improved JPEG-in-TIFF support also see the followingbug in bugzilla:  http://bugzilla.remotesensing.org/show_bug.cgi?id=156