Just a trivial typo fix... Cheers,
Patrick
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 5be070c..ae8e766 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -6572,7 +6572,7 @@ AC_CHECK_MEMBER(struct top.middle.bot)
@end example
This macro caches its result in the
-@code{av_cv_member_@var{aggregate}_@var{member}} variable, with
+@code{ac_cv_member_@var{aggregate}_@var{member}} variable, with
characters not suitable for a variable name mapped to underscores.
@end defmac
