strerror_r: Avoid clobbering the strerror buffer when possible.

[gnulib.git] / ChangeLog

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+2011-05-18  Bruno Haible  <bruno@clisp.org>
+
+       strerror_r: Avoid clobbering the strerror buffer when possible.
+       * lib/strerror_r.c (strerror_r): Merge the three implementations.
+       Handle gnulib defined errno values here. When strerror() returns NULL
+       or an empty string, return EINVAL.
+       * lib/strerror.c (strerror): Always call strerror_r. Don't handle
+       gnulib defined errno values here.
+       * modules/strerror (Depends-on): Add verify, strerror_r-posix.
+
 2011-05-18  Eric Blake  <eblake@redhat.com>
 
        fnmatch: avoid compiler warning