From ec2aa28b6427274b214c244d05b32bc4d7e865cd Mon Sep 17 00:00:00 2001 From: Bruno Haible <bruno@clisp.org> Date: Wed, 30 Dec 2020 10:21:48 -0500 Subject: [PATCH 09/12] doc: Document another portability problem of 'od'. * doc/autoconf.texi (Limitations of Usual Tools): Document that decimal output is not portable. --- doc/autoconf.texi | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/doc/autoconf.texi b/doc/autoconf.texi index d09aba70..db1e0f46 100644 --- a/doc/autoconf.texi +++ b/doc/autoconf.texi @@ -19782,14 +19782,33 @@ perfectly portable among Posix hosts. @c --------------- @prindex @command{od} -In Mac OS X 10.3, @command{od} does not support the +In MacOS X versions prior to 10.4.3, @command{od} does not support the standard Posix options @option{-A}, @option{-j}, @option{-N}, or @option{-t}, or the XSI option, @option{-s}. The only supported Posix option is @option{-v}, and the only supported XSI options are those in @option{-bcdox}. The BSD @command{hexdump} program can be used instead. -This problem no longer exists in Mac OS X 10.4.3. +In some versions of some operating systems derived from Solaris 11, +@command{od} prints decimal byte values padded with zeroes rather than +with spaces: + +@smallexample +$ @kbd{printf '#!' | od -A n -t d1 -N 2} + 035 033 +@end smallexample + +@noindent +instead of + +@smallexample +$ @kbd{printf '#!' | od -A n -t d1 -N 2} + 35 33 +@end smallexample + +We have observed this on both OpenIndiana and OmniOS; +Illumos may also be affected. +As a workaround, you can use octal output (option @code{-t o1}). @item @command{rm} -- 2.30.0