From ddc92ac35f83d49295ebffa9de165edca75a720d Mon Sep 17 00:00:00 2001
From: Christopher Kohlhoff <chris@kohlhoff.com>
Date: Sat, 30 Oct 2010 22:45:29 +0000
Subject: [PATCH] Target workaround at non-Apple objective-c++ compilers only,
 as the previous workaround broke those platforms. Pragmas push_macro and
 pop_macro are only available on gcc 4.4 or later, so use plain ol'
 #define/#undef instead.

[SVN r66289]
---
 include/boost/asio/detail/pop_options.hpp  |  9 ++++++---
 include/boost/asio/detail/push_options.hpp | 13 ++++++++-----
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/include/boost/asio/detail/pop_options.hpp b/include/boost/asio/detail/pop_options.hpp
index 5fffc645..e5c503ca 100644
--- a/include/boost/asio/detail/pop_options.hpp
+++ b/include/boost/asio/detail/pop_options.hpp
@@ -31,9 +31,12 @@
 #  pragma pack (pop)
 # endif
 
-# if defined(__OBJC__)
-#  pragma pop_macro("Protocol")
-#  pragma pop_macro("id")
+# if defined(__OBJC__) && !defined(__APPLE_CC__)
+#  if defined(BOOST_ASIO_OBJC_WORKAROUND)
+#   undef Protocol
+#   undef id
+#   undef BOOST_ASIO_OBJC_WORKAROUND
+#  endif
 # endif
 
 #elif defined(__KCC)
diff --git a/include/boost/asio/detail/push_options.hpp b/include/boost/asio/detail/push_options.hpp
index 17218414..62f0ac86 100644
--- a/include/boost/asio/detail/push_options.hpp
+++ b/include/boost/asio/detail/push_options.hpp
@@ -31,11 +31,14 @@
 #  pragma pack (push, 8)
 # endif
 
-# if defined(__OBJC__)
-#  pragma push_macro("Protocol")
-#  define Protocol cpp_Protocol
-#  pragma push_macro("id")
-#  define id cpp_id
+# if defined(__OBJC__) && !defined(__APPLE_CC__)
+#  if !defined(BOOST_ASIO_DISABLE_OBJC_WORKAROUND)
+#   if !defined(Protocol) && !defined(id)
+#    define Protocol cpp_Protocol
+#    define id cpp_id
+#    define BOOST_ASIO_OBJC_WORKAROUND
+#   endif
+#  endif
 # endif
 
 #elif defined(__KCC)