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authorWilliam Joye <wjoye@cfa.harvard.edu>2017-01-03 21:52:18 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2017-01-03 21:52:18 (GMT)
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+
+Wrapping the tiff support library for tcl is a bit more complicated
+than libz, or libpng.
+
+(1) libtiff comes with its own configure command, and there is no
+ configure.in. This means that it is not possible to lift the
+ relevant sections out of it for the configure of the
+ binding.
+
+ Also this configure is not exactly autoconf based (Seems so).
+ One of the things it has to be told is the target/build architecture,
+ as argument instead of via option. Because of this we cannot use
+ AC_CONFIG_SUBDIRS to run the sub-configure.
+
+ We do it directly, and are thus also able to avoid the symlink
+ we had to have in libjpeg/tcl.
+
+(2) The tif sources have usage of tdarg.h hardwired into them.
+ This means that a compiler not using this header, but varargs.h
+ cannot be used. This is checked in configure.