strchrnul: Tweak last commit.

[pspp] / ChangeLog

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+2011-04-16  Bruno Haible  <bruno@clisp.org>
+
+       strchrnul: Tweak last commit.
+       * doc/glibc-functions/strchrnul.texi: Add more details about Cygwin
+       bug.
+       * lib/string.in.h (strchrnul): Use same arguments in _GL_FUNCDECL_RPL
+       as in _GL_FUNCDECL_SYS.
+       * m4/strchrnul.m4 (gl_FUNC_STRCHRNUL): Invoke gl_PREREQ_STRCHRNUL after
+       AC_LIBOBJ. When cross-compiling, say "guessing yes" not "yes".
+
 2011-04-15  Eric Blake  <eblake@redhat.com>
 
        strchrnul: work around cygwin bug