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24#ifndef PXR_BASE_ARCH_DEFINES_H
25#define PXR_BASE_ARCH_DEFINES_H
33#elif defined(__APPLE__)
34#include "TargetConditionals.h"
41#elif defined(_WIN32) || defined(_WIN64)
42#define ARCH_OS_WINDOWS
49#if defined(i386) || defined(__i386__) || defined(__x86_64__) || \
50 defined(_M_IX86) || defined(_M_X64)
52#elif defined(__arm__) || defined(__aarch64__) || defined(_M_ARM)
60#if defined(__x86_64__) || defined(__aarch64__) || defined(_M_X64)
63#error "Unsupported architecture. x86_64 or ARM64 required."
71#define ARCH_COMPILER_CLANG
72#define ARCH_COMPILER_CLANG_MAJOR __clang_major__
73#define ARCH_COMPILER_CLANG_MINOR __clang_minor__
74#define ARCH_COMPILER_CLANG_PATCHLEVEL __clang_patchlevel__
75#elif defined(__GNUC__)
76#define ARCH_COMPILER_GCC
77#define ARCH_COMPILER_GCC_MAJOR __GNUC__
78#define ARCH_COMPILER_GCC_MINOR __GNUC_MINOR__
79#define ARCH_COMPILER_GCC_PATCHLEVEL __GNUC_PATCHLEVEL__
81#define ARCH_COMPILER_ICC
82#elif defined(_MSC_VER)
83#define ARCH_COMPILER_MSVC
84#define ARCH_COMPILER_MSVC_VERSION _MSC_VER
92#if defined(ARCH_OS_LINUX) && defined(ARCH_COMPILER_GCC)
93#define ARCH_HAS_GNU_STL_EXTENSIONS
98#if !(defined(ARCH_OS_DARWIN) && defined(ARCH_COMPILER_CLANG))
99#define ARCH_HAS_THREAD_LOCAL
103#if defined(ARCH_OS_LINUX)
104#define ARCH_HAS_MMAP_MAP_POPULATE