From 818f6552506eb2e907f41bd9bd8c1ab2616bfd79 Mon Sep 17 00:00:00 2001
From: Thomas Van Lenten <thomasvl@google.com>
Date: Thu, 24 Feb 2022 14:38:56 -0500
Subject: [PATCH] Make the ObjC support conditional to darwin.

Fixes #9392
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 4c774b0beab39..db690697857b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -80,7 +80,7 @@ AC_LANG([C++])
 ACX_USE_SYSTEM_EXTENSIONS
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 AM_CONDITIONAL(GCC, test "$GCC" = yes)   # let the Makefile know if we're gcc
-AC_PROG_OBJC
+AS_CASE([$target_os], [darwin*], [AC_PROG_OBJC], [AM_CONDITIONAL([am__fastdepOBJC], [false])])
 
 # test_util.cc takes forever to compile with GCC and optimization turned on.
 AC_MSG_CHECKING([C++ compiler flags...])