2015.09.15 14:33 "Re: [Tiff] "bad file descriptor" if operating with lseek on filedescriptor given by TIFFFileno (Windows only)", by Bob Friesenhahn

I second Bob's suggestion. For completeness of the mailing list, I'd point out again that this is a known problem:

The problem might not be that one.

I am not aware that any of us has tested cross-compilation to WIN32 or WIN64 from a Linux system and verified that everything works. I have only verified compilation and tests under MSYS shell with MinGW (as well as Cygwin) on a Windows 7 system.

Bob
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Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/