docs: link to 'set -e' shell behavior overview.

* doc/autoconf.texi (Limitations of Builtins): Add link to
Sven Mascheck's 'set -e' page.  Replace broken Opengroup link.
Suggestion by Eric Blake.

Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

diff --git a/ChangeLog b/ChangeLog
index bca9909e67cae326c1d90ae4416925ba7f32b9c6..eb9d68eb7002c98db23de544e386942283de9d86 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2011-01-09  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
+       docs: link to 'set -e' shell behavior overview.
+       * doc/autoconf.texi (Limitations of Builtins): Add link to
+       Sven Mascheck's 'set -e' page.  Replace broken Opengroup link.
+       Suggestion by Eric Blake.
+
        docs: mention configmake module for defining directories.
        * doc/autoconf.texi (Defining Directories): Mention configmake
        gnulib module.

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index be1ef5b0bbc740452d2f03deb7a96c9bc09c679e..3b7fde65d90abf8c30a89c2d47e98e8c6a796fe4 100644 (file)
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -17382,11 +17382,11 @@ set -ex
 @cindex @command{set -e}
 The option @option{-e} has historically been underspecified, with enough
 ambiguities to cause numerous differences across various shell
-implementations.  Perhaps the best reference is
-@uref{http://www.opengroup.org/@/austin/@/mailarchives/@/ag-review/@/msg03507.html,
-this link}, recommending a change to Posix 2008 to match @command{ksh88}
-behavior.  Note that mixing @code{set -e} and shell functions is asking
-for surprises:
+implementations; see for example
+@uref{http://www.in-ulm.de/@/~mascheck/@/various/@/set-e/, this overview},
+or @uref{http://www.austingroupbugs.net/@/view.php?id=52, this link},
+documenting a change to Posix 2008 to match @command{ksh88} behavior.
+Note that mixing @code{set -e} and shell functions is asking for surprises:
 
 @example
 set -e