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docs: document Solaris 10 /bin/ksh and XPG4 sh 'unset' bug

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* doc/autoconf.texi (Limitations of Builtins): Solaris 10 ksh
and XPG4 sh also fails upon `unset' of a variable that is not
set.
This commit is contained in:
Stefano Lattarini 2011-09-13 15:56:57 +02:00
parent 7a615729c9
commit 7b49187003
2 changed files with 9 additions and 1 deletions
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@ -1,3 +1,10 @@
2011-09-13 Stefano Lattarini <stefano.lattarini@gmail.com>
docs: document Solaris 10 /bin/ksh and XPG4 sh 'unset' bug
* doc/autoconf.texi (Limitations of Builtins): Solaris 10 ksh
and XPG4 sh also fails upon `unset' of a variable that is not
set.
2011-07-24 Jim Meyering <meyering@redhat.com>
docs: improve the prose describing _AC_CHECK_TYPE_NEW_BODY

3
doc/autoconf.texi
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@ -18105,7 +18105,8 @@ and file name expansion.
@item @command{unset}
@c ------------------
@prindex @command{unset}
In some nonconforming shells (e.g., NetBSD 5.99.43 sh or Bash 2.05a),
In some nonconforming shells (e.g., Solaris 10 @command{/bin/ksh} and
@command{/usr/xpg4/bin/sh}, NetBSD 5.99.43 sh, or Bash 2.05a),
@code{unset FOO} fails when @code{FOO} is not set. This can interfere
with @code{set -e} operation. You can use