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April 2006
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2006.04.04 02:43 "Re: WORDS_BIGENDIAN makes libtiff platform dependent", by Graeme Gill
Bob Friesenhahn wrote: > > Based on prevailing evidence, I believe that you are correct. Here are > the ChangeLog entries: > > 2005-06-03 Andrey Kiselev <dron@ak4719.spb.edu> > > * libtiff/tif_open.c: Replace runtime endianess check with the > compile time one. > > ... > > I expect that the BigTIFF support (planned for libtiff 4.0) is going to > require more knowledge of its evironment since a 64-bit type needs to be > identified. Some target-specific configuration will always be required. Hmm. The tif_open.c changelog says what has changed, but not *why* it has changed. Even BigTIFF support doesn't imply any need for compile time endian dependent (nor 64 bit dependent) code. You could write BigTIFF support in such a way that it will run on a 32 bit machine, and doesn't even need compiler support for long long. You may not want to this of course. Graeme Gill.