Removed raw references to __APPLE__; now just check to see if it is defined.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@177297 91177308-0d34-0410-b5e6-96231b3b80d8

src/chrono.cpp

@@ -9,7 +9,7 @@
 
 #include "chrono"
 #include <sys/time.h>        //for gettimeofday and timeval
-#if __APPLE__
+#ifdef __APPLE__
 #include <mach/mach_time.h>  // mach_absolute_time, mach_timebase_info_data_t
 #else  /* !__APPLE__ */
 #include <cerrno>  // errno
@@ -50,7 +50,7 @@ system_clock::from_time_t(time_t t) _NOEXCEPT
 
 const bool steady_clock::is_steady;
 
-#if __APPLE__
+#ifdef __APPLE__
 //   mach_absolute_time() * MachInfo.numer / MachInfo.denom is the number of
 //   nanoseconds since the computer booted up.  MachInfo.numer and MachInfo.denom
 //   are run time constants supplied by the OS.  This clock has no relationship

src/exception.cpp

@@ -14,7 +14,7 @@
 #define __has_include(inc) 0
 #endif
 
-#if __APPLE__
+#ifdef __APPLE__
   #include <cxxabi.h>
 
   using namespace __cxxabiv1;
@@ -102,7 +102,7 @@ terminate() _NOEXCEPT
 #if !defined(LIBCXXRT) && !defined(__GLIBCXX__)
 bool uncaught_exception() _NOEXCEPT
 {
-#if __APPLE__ || defined(_LIBCPPABI_VERSION)
+#if defined(__APPLE__) || defined(_LIBCPPABI_VERSION)
     // on Darwin, there is a helper function so __cxa_get_globals is private
     return __cxa_uncaught_exception();
 #else  // __APPLE__

src/new.cpp

@@ -15,7 +15,7 @@
 #define __has_include(inc) 0
 #endif
 
-#if __APPLE__
+#ifdef __APPLE__
     #include <cxxabi.h>
 
     #ifndef _LIBCPPABI_VERSION

src/stdexcept.cpp

@@ -20,7 +20,7 @@
 #define __has_include(inc) 0
 #endif
 
-#if __APPLE__
+#ifdef __APPLE__
 #include <cxxabi.h>
 #elif defined(LIBCXXRT) || __has_include(<cxxabi.h>)
 #include <cxxabi.h>

src/typeinfo.cpp

@@ -12,7 +12,7 @@
 #define __has_include(inc) 0
 #endif
 
-#if __APPLE__
+#ifdef __APPLE__
 #include <cxxabi.h>
 #elif defined(LIBCXXRT) || __has_include(<cxxabi.h>)
 #include <cxxabi.h>
@@ -50,7 +50,7 @@ std::bad_typeid::what() const _NOEXCEPT
   return "std::bad_typeid";
 }
 
-#if __APPLE__
+#ifdef __APPLE__
   // On Darwin, the cxa_bad_* functions cannot be in the lower level library
   // because bad_cast and bad_typeid are defined in his higher level library
   void __cxxabiv1::__cxa_bad_typeid() { throw std::bad_typeid(); }