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Jim Meyering
790892db65
when applied to files in /proc and /sys, even when the FIONREAD ioctl produces nonsensical results. Before this change, cat would produce no output (or truncated output), for some linux kernels. * src/cat.c (write_pending): New function, factored out of cat. (cat): Also interpret a negative ioctl/FIONREAD count as indicating that there are bytes to read. Some versions of linux-2.6.16 do that. Write any pending output before returning. Reported by Dan Jacobson in <http://bugs.debian.org/370583>. * NEWS: Mention this bug fix. * tests/misc/cat-proc: New file. Test for the above. * tests/misc/Makefile.am (TESTS): Add cat-proc.
A note about Makefile.am.in. It is used (usually only by the maintainer) to generate some of the Makefile.am files in these subdirectories.