nobu	2018-11-04 08:10:57 +0900 (Sun, 04 Nov 2018)

  New Revision: 65520

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=65520

  Log:
    configure.ac: set CC_WRAPPER by checking message

  Modified files:
    trunk/configure.ac
Index: configure.ac
===================================================================
--- configure.ac	(revision 65519)
+++ configure.ac	(revision 65520)
@@ -257,14 +257,13 @@ AS_CASE(["$build_os"], https://github.com/ruby/ruby/blob/trunk/configure.ac#L257
     # 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=

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