From a7b558bf7da085cda53b92dc686d387100bdd7b9 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Thu, 7 Oct 2021 10:04:25 -0400
Subject: [PATCH] Meta: Warn on `rebuild-toolchain i686 clang`

It's "Clang" (capitalized). Silently building gcc if the toolchain
isn't know seems a bit unfriendly. So print a warning for this
(and for other unknown toolchains).
---
 Meta/serenity.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Meta/serenity.sh b/Meta/serenity.sh
index 49307f5889..3a932c76ed 100755
--- a/Meta/serenity.sh
+++ b/Meta/serenity.sh
@@ -93,6 +93,10 @@ case "$1" in
         TOOLCHAIN_TYPE="$1"; shift
         ;;
     *)
+        if [ -n "$1" ]; then
+            echo "WARNING: unknown toolchain '$1'. Defaulting to GNU."
+            echo "         Valid values are 'Clang', 'GNU' (default)"
+        fi
         TOOLCHAIN_TYPE="GNU"
         ;;
 esac