1 files changed, 5 insertions, 1 deletions
diff --git a/tools/gbtype b/tools/gbtype
index f58a1f8..c741c85 100755
--- a/tools/gbtype
+++ b/tools/gbtype
@@ -41,7 +41,11 @@ def send(header, payload=b""):
         if not d: break
         out += d
     s.close()
-    sys.stdout.write(out.decode(errors="replace"))
+    text = out.decode(errors="replace")
+    if text.startswith("err"):            # make failures loud and scriptable
+        sys.stderr.write(text)
+        sys.exit(1)
+    sys.stdout.write(text)
 
 def main():
     args = sys.argv[1:]