add autoconf patch, see https://gist.github.com/anonymous/5071073, th…

…x BlueDarknezz

package/autoconf/autoconf-2.65-fix-autoconf_texi-for-texinfo-5.x.patch

@@ -0,0 +1,20 @@
+diff --git a/doc/autoconf.texi b/doc/autoconf.texi
+index 78a2c67..506d966 100644
+--- a/doc/autoconf.texi
++++ b/doc/autoconf.texi
+@@ -15,7 +15,7 @@
+ @c The ARG is an optional argument.  To be used for macro arguments in
+ @c their documentation (@defmac).
+ @macro ovar{varname}
+-@r{[}@var{\varname\}@r{]}@c
++@r{[}@var{\varname\}@r{]}
+ @end macro
+
+ @c @dvar(ARG, DEFAULT)
+@@ -23,7 +23,7 @@
+ @c The ARG is an optional argument, defaulting to DEFAULT.  To be used
+ @c for macro arguments in their documentation (@defmac).
+ @macro dvar{varname, default}
+-@r{[}@var{\varname\} = @samp{\default\}@r{]}@c
++@r{[}@var{\varname\} = @samp{\default\}@r{]}
+ @end macro