Patch to improve BSD make compatibility

[Jos Backus]

Here's the patch. I have already tried to convince the FreeBSD people to adopt
a similar patch (to make BSD make accept $^ as an alias for ^>) but that
attempt has failed. Please ask if you are interested.

--- expand.c.orig       Mon Jun 19 13:23:35 2000
+++ expand.c    Sat Jun  1 00:42:11 2002
@@ -373,6 +373,11 @@
 
          /* A $ followed by a random char is a variable reference:
             $a is equivalent to $(a).  */
+
+         /* Treat $> as $^ for compatibility with BSD make. */ 
+         if (*p == '>')
+           *p = '^';
+
          {
            /* We could do the expanding here, but this way
               avoids code repetition at a small performance cost.  */

Thanks for considering this enhancement.

-- 
Jos Backus                 _/  _/_/_/        Santa Clara, CA
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