From ccdf07735ae3d91444ffe316486d1e3cc48e9128 Mon Sep 17 00:00:00 2001
From: Brian Smith <brian@dbsoft.org>
Date: Thu, 9 Jun 2022 14:38:33 -0500
Subject: [PATCH] Issue #1905 - Part 3d - Report GNU AS when the system "as" is
 LLVM-as. LLVM as is generally compatible with GNU, this should allow ICU to
 build on ARM Macs.

---
 build/autoconf/toolchain.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/autoconf/toolchain.m4 b/build/autoconf/toolchain.m4
index 3109f5dfcf..5940e9698a 100644
--- a/build/autoconf/toolchain.m4
+++ b/build/autoconf/toolchain.m4
@@ -24,7 +24,7 @@ if test "$CC_TYPE" = "gcc"; then
     GNU_CXX=1
 fi
 
-if test "`echo | $AS -o conftest.out -v 2>&1 | grep -c GNU`" != "0"; then
+if test "`echo | $AS -o conftest.out -v 2>&1 | grep -c GNU|LLVM`" != "0"; then
     GNU_AS=1
 fi
 rm -f conftest.out