From 0f28fe2bcdc04126ea23bf92304585981adeda97 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 3 Nov 2018 23:10:57 +0000
Subject: [PATCH] configure.ac: set CC_WRAPPER by checking message

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65520 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 configure.ac | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/configure.ac b/configure.ac
index 70d8ed9cc3..622850e371 100644
--- a/configure.ac
+++ b/configure.ac
@@ -257,14 +257,13 @@ AS_CASE(["$build_os"],
     # Xcode linker warns for deprecated architecture and wrongly
     # installed TBD files.
     CC_WRAPPER=""
-    AS_IF([! $CC -E -xc - <<SRC >/dev/null 2>&1], [
-	@%:@if defined __APPLE_CC__ && defined __clang_major__ && __clang_major__ >= 10
-	@%:@error ignore linker warnings
-	@%:@endif
-SRC
+    echo 'int main(void) {return 0;}' > conftest.c
+    AS_IF([$CC -framework Foundation -o conftest conftest.c 2>&1 |
+	   grep '^ld: warning: text-based stub file' >/dev/null], [
 	CC_WRAPPER=`cd -P "$srcdir/tool" && pwd`/darwin-cc
 	CC="$CC_WRAPPER $CC"
     ])
+    rm -fr conftest*
   ])
 
 cc_version=