[gnuwin32 - Help] Problems building libtiff

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https://sourceforge.net/forum/message.php?msg_id=6617123
By: roboro

Hi,

I am trying to build libtiff from the GnuWin32 source package. I am using Bash
and Make from MSYS 1.0.10, and I have the current BinUtils and GCC from MinGW
5.1.4. I edited config.status to fix the glibc path for my machine and I ran
make. It failed compiling tif_unix.c.

In file included from ../../tiff-3.8.2-src/libtiff/tif_unix.c:97:
D:/Progra~1/GnuWin32/include/glibc/sys/mman.h:32: error: conflicting types for
'off_t'
d:/win32app/MinGW/bin/../lib/gcc/mingw32/3.4.5/../../../../include/sys/types.h:41:
error: previous declaration of 'off_t' was here

...

It appears that MinGW is not compatible with the large file support that is
enabled in the GnuWin32 libtiff source (off_t is a long in MinGW). I thought
that I could easily fix this by making sure that the HAVE_SYS_TYPES_H macro
was not defined. I commented out the two relevant lines in the config.status
script and ran it again. However, attempting to run make again resulted in the
exact same error as above. I looked at the tif_config.h file and verified that
HAVE_SYS_TYPES_H was not defined. I don't understand why sys/types.h is still
being pulled in from MinGW.

Any insights will be greatly appreciated. Thanks in advance.

Rob

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