* 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".
A misplaced * means that cygwin 1.7.9 dereferences NULL rather
than returning the location of the trailing NUL byte.
* doc/glibc-functions/strchrnul.texi (strchrnul): Document bug.
* m4/strchrnul.m4 (gl_FUNC_STRCHRNUL): Detect it.
* m4/string_h.m4 (gl_HEADER_STRING_H_DEFAULTS): New witness.
* modules/string (Makefile.am): Substitute it.
* lib/string.in.h (strchrnul): Use it.
Signed-off-by: Eric Blake <eblake@redhat.com>
* m4/printf.m4 (gl_PRINTF_INFINITE_LONG_DOUBLE): Don't guess yes on
NetBSD; the test fails on NetBSD 5.0.
* doc/{glibc,posix,pastposix}-{headers,functions}/*.texi: Update info
about NetBSD.
* m4/printf.m4 (gl_PRINTF_INFINITE_LONG_DOUBLE): Don't guess yes on
MacOS X; the test fails on MacOS X 10.5.8.
* doc/{glibc,posix,pastposix}-{headers,functions}/*.texi: Update info
about MacOS X.
