On 05/16/2014 11:13 AM, Jim Meyering wrote:
Thanks for tracking that down. This sounds like it will deserve
compile/run tests so that gnulib-using projects will detect the bug
and use the replacement functions.
Thanks, good idea.
gnulib/tests/test-mbrtowc.c has test cases for zero-length input that
explicitly allow mbrtowc to return 0 (glibc behavior) or (size_t) -1
(AIX 5.1 behavior). My guess is that Bruno didn't get around to
installing a fix for these bugs, perhaps because he didn't think it
important enough. But this 'grep' failure has given me motivation to
fix it, so I plan to do that soon in gnulib.
I won't install any change to grep for this right now, as we're close to
a release and the existing grep code should be correct (albeit perhaps a
bit slower) regardless of whether gnulib is fixed.
