From 3ac9af6789f30bd0c067a1ee60e0e6d8c57e1644 Mon Sep 17 00:00:00 2001
From: retropikzel <retropikzel@iki.fi>
Date: Sat, 21 Feb 2026 19:13:09 +0200
Subject: [PATCH] Fix string-append problem with tr7 when file is #f

---
 lib/chibi/snow/commands.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/chibi/snow/commands.scm b/lib/chibi/snow/commands.scm
index 1cd94960..48ee8a86 100644
--- a/lib/chibi/snow/commands.scm
+++ b/lib/chibi/snow/commands.scm
@@ -1766,7 +1766,7 @@
              `(stklos -A ,install-dir ,file)))
         ((tr7)
          (if lib-path
-             `(sh -c ,(string-append "TR7_LIB_PATH=" lib-path " tr7i " file))
+             `(sh -c ,(string-append "TR7_LIB_PATH=" lib-path " tr7i " (if file file "")))
              `(tr7i ,file)))
         ((ypsilon)
          (if lib-path