Added =>, else, and _ aux macros

src/ikarus.syntax.ss

@@ -1567,8 +1567,7 @@
            [(quasiquote)        quasiquote-macro]
            [(with-syntax)       with-syntax-macro]
            [(identifier-syntax) identifier-syntax-macro]
-           [(...)               incorrect-usage-macro]
-           [(=>)                incorrect-usage-macro]
+           [(... => _ else)     incorrect-usage-macro]
            [else (error 'macro-transformer "invalid macro ~s" x)])]
         [else (error 'core-macro-transformer "invalid macro ~s" x)])))
   (define (local-macro-transformer x)

src/makefile.ss

@@ -110,6 +110,9 @@
     [and               (macro . and)]
     [or                (macro . or)]
     [...               (macro . ...)]
+    [=>                (macro . =>)]
+    [else              (macro . else)]
+    [_                 (macro . _)]
     ))
 
 (define library-legend
@@ -232,6 +235,9 @@
     [and               i r]
     [or                i r]
     [...               i r]
+    [=>               i r]
+    [else               i r]
+    [_               i r]
     ))
 
 (define ikarus-procedures-map