[Patch 4/4] MdePkg/X64/ProcessorBind.h: Fix EmulatorPkg X64 XCODE5

["Michael D Kinney" <michael.d.kinney@intel.com>]

https://bugzilla.tianocore.org/show_bug.cgi?id=2046

Make sure all libs that should be dynamically linked
are dynamically linked when XCODE5 compiler is used.
A previous change introduced the following pragma:

    #pragma GCC visibility push (hidden)

When the EmulatorPkg is built using XCODE5 toolchain
for X64, this pragma is included and it generates a
linker error when building the Unix Host module.  This
change uses !defined(__APPLE__) to prevent the use of
this pragma when building EmulatorPkg/Unix/Host.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
---
 MdePkg/Include/X64/ProcessorBind.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MdePkg/Include/X64/ProcessorBind.h b/MdePkg/Include/X64/ProcessorBind.h
index b22cb226b0..6f65acd609 100644
--- a/MdePkg/Include/X64/ProcessorBind.h
+++ b/MdePkg/Include/X64/ProcessorBind.h
@@ -1,7 +1,7 @@
 /** @file
   Processor or Compiler specific defines and types x64 (Intel 64, AMD64).
 
-  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -21,7 +21,7 @@
 #pragma pack()
 #endif
 
-#if defined(__GNUC__) && defined(__pic__) && !defined(USING_LTO)
+#if defined(__GNUC__) && defined(__pic__) && !defined(USING_LTO)  && !defined(__APPLE__)
 //
 // Mark all symbol declarations and references as hidden, meaning they will
 // not be subject to symbol preemption. This allows the compiler to refer to
-- 
2.21.0.windows.1