From: Chris Hanson <org/chris-hanson/cph>
Date: Mon, 21 Jan 2019 04:22:28 +0000 (-0800)
Subject: Don't return open block at top level when syntaxing a single form.
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=5d5a55094f3d35469d75585e776b4a3658ddd4c8;p=mit-scheme.git

Don't return open block at top level when syntaxing a single form.

(cherry picked from commit 71d9d70415cc836d245175a22bf9b937ae26ab15)
---

diff --git a/src/runtime/syntax.scm b/src/runtime/syntax.scm
index f76f5dd46..6673bdf00 100644
--- a/src/runtime/syntax.scm
+++ b/src/runtime/syntax.scm
@@ -44,7 +44,12 @@ USA.
 ;;;; Top level
 
 (define (syntax form environment)
-  (syntax* (list form) environment))
+  (let ((result (syntax* (list form) environment)))
+    (if (scode-open-block? result)
+	(unscan-defines (scode-open-block-names result)
+			(scode-open-block-declarations result)
+			(scode-open-block-actions result))
+	result)))
 
 (define (syntax* forms environment)
   (guarantee list? forms 'syntax*)