Ralf Wildenhues <[EMAIL PROTECTED]> writes:
> <http://lists.gnu.org/archive/html/libtool-patches/2005-01/msg00157.html>
Thanks for mentiong that, I put the following into the Autoconf manual:
2007-01-28 Paul Eggert <[EMAIL PROTECTED]>
* doc/autoconf.texi (Shellology): pdksh 5.2.14 is still the
latest version.
(Shell Substitutions): Note problems with @{var:=value} etc.
Add a new section for problems with @{#var} etc. Problem noted
by Ralf Wildenhues. See:
http://lists.gnu.org/archive/html/libtool-patches/2005-01/msg00157.html
--- doc/autoconf.texi 23 Jan 2007 18:47:23 -0000 1.1128
+++ doc/autoconf.texi 29 Jan 2007 01:25:44 -0000
@@ -11063,7 +11063,7 @@ available: it has most of the @samp{ksh8
its own. It usually sets @code{KSH_VERSION}, except if invoked as
@command{/bin/sh} on [EMAIL PROTECTED], and similarly to Bash you can require
Posix compatibility by running @samp{set -o posix}. Unfortunately, with
[EMAIL PROTECTED] 5.2.14 (the latest stable version as of February 2006)
[EMAIL PROTECTED] 5.2.14 (the latest stable version as of January 2007)
Posix mode is buggy and causes @command{pdksh} to depart from Posix in
at least one respect:
@@ -11596,6 +11596,7 @@ bad substitution
@c @cindex [EMAIL PROTECTED]@var{var}:[EMAIL PROTECTED]@}
Old @acronym{BSD} shells, including the Ultrix @code{sh}, don't accept the
colon for any shell substitution, and complain and die.
+Similarly for [EMAIL PROTECTED]@var{var}:[EMAIL PROTECTED]@}, [EMAIL
PROTECTED]@var{var}:[EMAIL PROTECTED]@}, etc.
@item [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
@cindex [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
@@ -11699,6 +11700,24 @@ use:
test "[EMAIL PROTECTED]@}" = set || [EMAIL PROTECTED]@[EMAIL PROTECTED]
@end example
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
[EMAIL PROTECTED] [EMAIL PROTECTED]@[EMAIL PROTECTED]@}
+Posix requires support for these usages, but they do not work with many
+traditional shells, e.g., Solaris 10 @command{/bin/sh}.
+
+Also, @command{pdksh} 5.2.14 mishandles some @var{word} forms. For
+example if @samp{$1} is @samp{a/b} and @samp{$2} is @samp{a}, then
[EMAIL PROTECTED]@[EMAIL PROTECTED] should yield @samp{/b}, but with
@command{pdksh} it
+yields the empty string.
+
@item [EMAIL PROTECTED]
@cindex [EMAIL PROTECTED]
@@ -11749,7 +11768,7 @@ releases of Solaris don't support it:
@example
$ @kbd{showrev -c /bin/sh | grep version}
-Command version: SunOS 5.10 Generic 121004-01 Oct 2005
+Command version: SunOS 5.10 Generic 121005-03 Oct 2006
$ @kbd{echo $(echo blah)}
syntax error: `(' unexpected
@end example
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