Suppress a partial-availability warning in process_reader_test.cc.

snapshot/mac/process_reader_test.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 25 matching lines @@
 #include "test/errors.h"
 #include "test/mac/dyld.h"
 #include "test/mac/mach_errors.h"
 #include "test/mac/mach_multiprocess.h"
 #include "util/file/file_io.h"
 #include "util/mac/mac_util.h"
 #include "util/mach/mach_extensions.h"
 #include "util/stdlib/pointer_container.h"
 #include "util/synchronization/semaphore.h"
 
+#if !defined(MAC_OS_X_VERSION_10_10) || \
+    MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_10
+extern "C" {
+// Redeclare a typedef whose availability (OSX 10.10) is newer than the
+// deployment target.
+typedef struct _cl_device_id* cl_device_id;
+}  // extern "C"
+#endif
+
 namespace crashpad {
 namespace test {
 namespace {
 
 TEST(ProcessReader, SelfBasic) {
   ProcessReader process_reader;
   ASSERT_TRUE(process_reader.Initialize(mach_task_self()));
 
 #if !defined(ARCH_CPU_64_BITS)
   EXPECT_FALSE(process_reader.Is64Bit());
@@ skipping 764 matching lines @@
   ScopedOpenCLNoOpKernel ensure_cl_kernels;
   ASSERT_NO_FATAL_FAILURE(ensure_cl_kernels.SetUp());
 
   ProcessReaderModulesChild process_reader_modules_child;
   process_reader_modules_child.Run();
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace crashpad