strerror: enforce POSIX ruling on strerror(0)

[gnulib.git] / ChangeLog

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+2011-05-19  Eric Blake  <eblake@redhat.com>
+
+       strerror: enforce POSIX ruling on strerror(0)
+       * m4/strerror.m4 (gl_FUNC_STRERROR_SEPARATE): Expose BSD bug.
+       * m4/strerror_r.m4 (gl_FUNC_STRERROR_R): Likewise.
+       * lib/strerror_r.c (rpl_strerror_r): Work around it.
+       * doc/posix-functions/strerror.texi (strerror): Document it.
+       * doc/posix-functions/strerror_r.texi (strerror_r): Likewise.
+       * tests/test-strerror.c (main): Strengthen test.
+       * tests/test-strerror_r.c (main): Likewise.
+
 2011-05-19  Paul Eggert  <eggert@cs.ucla.edu>
 
        intprop-tests: port to older and more-pedantic compilers