2012-09-09  Paul Smith  <psmith@gnu.org>

	* read.c (eval): Use the correct pointer when adding to the variable buffer.
	Fixes Savannah bug #36106.
 
--- a/read.c
+++ b/read.c
@@ -1078,12 +1078,12 @@ eval (struct ebuffer *ebuf, int set_default)
                after it.  */
             if (semip)
               {
-                unsigned int l = p - variable_buffer;
+                unsigned int l = p2 - variable_buffer;
                 *(--semip) = ';';
                 collapse_continuations (semip);
                 variable_buffer_output (p2 + strlen (p2),
                                         semip, strlen (semip)+1);
-                p = variable_buffer + l;
+                p2 = variable_buffer + l;
               }
             record_target_var (filenames, p2,
                                vmod.override_v ? o_override : o_file,