strerror_r: fix OpenBSD behavior on 0

[gnulib.git] / ChangeLog

diff --git a/ChangeLog b/ChangeLog
index d9e6fc0..70c1903 100644 (file)
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+++ b/ChangeLog
@@ -1,5 +1,23 @@
 2011-06-21  Eric Blake  <eblake@redhat.com>
 
+       strerror_r: fix OpenBSD behavior on 0
+       * lib/strerror-override.c (strerror_override): Also override 0
+       when needed.
+       * lib/strerror-override.h (strerror_override): Likewise.
+       * lib/strerror.c (strerror): Simplify, now that 0 override is done
+       earlier.
+       * lib/strerror_r.c (strerror_r): Likewise.
+       * m4/strerror.m4 (gl_FUNC_STRERROR): Split detection of 0
+       behavior...
+       (gl_FUNC_STRERROR_0): ...into new macro.
+       * m4/strerror_r.m4 (gl_FUNC_STRERROR_R): Replace strerror_r if 0
+       is overridden.
+       (gl_FUNC_STRERROR_R_WORKS): Avoid extra tests if 0 is broken.
+       * modules/strerror-override (Files): Add strerror.m4.
+       (configure.ac): Also provide override for 0 when needed.
+       * doc/posix-functions/strerror.texi (strerror): Document this.
+       * doc/posix-functions/perror.texi (perror): Likewise.
+
        perror: adjust array size
        * modules/perror (Depends-on): Add strerror-override.
        * lib/perror.c (perror): Use it to avoid magic number.