2008.06.07 02:39 "Re: [Tiff] Mac OS X universal binary PowerPC endian issues", by Bob Friesenhahn
Hello. I use MacPorts  to install tiff 3.8.2. There is no problem when building for only the native architecture. But a ticket was filed in the MacPorts issue tracker  for a problem when a universal binary of tiff is built using the usual Apple-recommended procedure  (configure and build once using "-arch i386 -arch ppc"). The problem is that the configure-time macros tiff uses to determine the endianness always detect Intel endianness in this case, so the PowerPC binaries don't function correctly:
I read that autoconf 2.62 includes a fix to address building OS-X universal binaries. I have not researched to see what this fix is. If this is true then the problem may be resolved without any patch.
Finally, a concern was voiced in our ticket that tiff's "make check" didn't catch this problem.
The test suite does not do very much yet. It should do more the next release.
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/