Bug#559376: Acknowledgement (pwrite64 fails to support large files in 32-bit application)

[Bob Friesenhahn <bfriesen@simple.dallas.tx.us>]

I think that this bug report is bogus.  The pread/pwrite interfaces 
do work with

#define _XOPEN_SOURCE 500

GraphicsMagick has not been definining _XOPEN_SOURCE since this breaks 
compilation on many systems.  Instead it has been providing its own 
prototypes for pread and pwrite with this form:

ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
ssize_t pwrite(int fildes, const void *buf, size_t nbyte, off_t offset);

which should normally be sufficient, but apparently not sufficient for 
Linux.

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