2006-03-22  Stepan Kasal  <address@hidden>

	* doc/autoconf.texi (Shell Substitutions): Document that ^ must be
	  always quoted.

Index: doc/autoconf.texi
===================================================================
RCS file: /cvsroot/autoconf/autoconf/doc/autoconf.texi,v
retrieving revision 1.971
diff -u -r1.971 autoconf.texi
--- doc/autoconf.texi	21 Mar 2006 21:51:07 -0000	1.971
+++ doc/autoconf.texi	21 Mar 2006 23:14:01 -0000
@@ -10971,6 +10971,11 @@
 echo $(case x in x) echo hello;; esac)
 @end example
 
address@hidden ^
address@hidden ^ quoting
+Always quote @samp{^}.  For example @command{/bin/sh} on Solaris 10
+chokes on @samp{echo ^a}.
+
 @end table