FYI for i; do

[Akim Demaille]

2000-11-10  Akim Demaille  <address@hidden>

        * doc/autoconf.texi (Limitations of Builtins): `for i; do'.

Index: doc/autoconf.texi
===================================================================
RCS file: /cvs/autoconf/doc/autoconf.texi,v
retrieving revision 1.377
diff -u -u -r1.377 autoconf.texi
--- doc/autoconf.texi 2000/11/10 12:10:13 1.377
+++ doc/autoconf.texi 2000/11/10 14:21:14
@@ -5415,6 +5415,35 @@
 Therefore you should @command{export} again each environment variable
 you update.
 
address@hidden @command{for}
address@hidden @command{for}
+To loop over positional arguments, use
+
address@hidden
+for arg
+do
+  echo "$arg"
+done
address@hidden example
+
address@hidden
+You may @emph{not} leave the @code{do} on the same line as @code{for},
+since some shells improperly grok
+
address@hidden
+for arg; do
+  echo "$arg"
+done
address@hidden example
+
+If you want to explicitly refer to the positional arguments, given the
address@hidden@@} bug (@pxref{Shell Substitutions}), use:
+
address@hidden
+for arg in ${1+"$@@"}; do
+  echo "$arg"
+done
+
 @item @command{if}
 @cindex @command{if}
 Using @samp{!} is not portable.  Instead of