From a16bcc13d9c9db484717c3c19980532fad11c2de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Reimar=20D=C3=B6ffinger?= <Reimar.Doeffinger@gmx.de>
Date: Sat, 23 Jan 2021 13:52:41 +0100
Subject: [PATCH] configure: add fallback to $arch in msvc assembler check.

Setting the defaults for $arch happens only later, so
the current code would not set AS correctly if --arch
was not specified on the command-line.
Fix it by adding an explicit fallback to $arch_default.

Signed-off-by: Josh Dekker <josh@itanimul.li>
---
 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index 54fbbd6b5f..df298b4b9b 100755
--- a/configure
+++ b/configure
@@ -4268,7 +4268,7 @@ case "$toolchain" in
         ld_default="$source_path/compat/windows/mslink"
         nm_default="dumpbin.exe -symbols"
         ar_default="lib.exe"
-        case "$arch" in
+        case "${arch:-$arch_default}" in
         aarch64|arm64)
             as_default="armasm64.exe"
             ;;