From: Alexander Graf <graf@amazon.com>
Date: Wed, 30 Aug 2023 16:14:14 +0000 (+0000)
Subject: build: Only define OS_OBJECT_USE_OBJC with gcc
X-Git-Tag: qemu-xen-4.20.0~563^2
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=2fc36530dec61eb83c73f5684a0e8f55a0b9a4d1;p=qemu-xen.git

build: Only define OS_OBJECT_USE_OBJC with gcc

Recent versions of macOS use clang instead of gcc. The OS_OBJECT_USE_OBJC
define is only necessary when building with gcc. Let's not define it when
building with clang.

With this patch, I can successfully include GCD headers in QEMU when
building with clang.

Signed-off-by: Alexander Graf <graf@amazon.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <20230830161425.91946-2-graf@amazon.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---

diff --git a/meson.build b/meson.build
index ec14079c67..296f6ef1d2 100644
--- a/meson.build
+++ b/meson.build
@@ -223,7 +223,9 @@ qemu_ldflags = []
 if targetos == 'darwin'
   # Disable attempts to use ObjectiveC features in os/object.h since they
   # won't work when we're compiling with gcc as a C compiler.
-  qemu_common_flags += '-DOS_OBJECT_USE_OBJC=0'
+  if compiler.get_id() == 'gcc'
+    qemu_common_flags += '-DOS_OBJECT_USE_OBJC=0'
+  endif
 elif targetos == 'solaris'
   # needed for CMSG_ macros in sys/socket.h
   qemu_common_flags += '-D_XOPEN_SOURCE=600'