libwebrtc/CMakeModules/TargetOsAndCpu.cmake

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1.9 KiB
CMake

include(CheckSymbolExists)
function(detect_current_arch)
if (WIN32)
check_symbol_exists("_M_X64" "" ARCH_X64)
if (NOT ARCH_X64)
check_symbol_exists("_M_AMD64" "" ARCH_X64)
endif (NOT ARCH_X64)
check_symbol_exists("_M_IX86" "" ARCH_X86)
check_symbol_exists("_M_ARM" "" ARCH_ARM)
check_symbol_exists("_M_ARM64" "" ARCH_ARM64)
else (WIN32)
check_symbol_exists("__i386__" "" ARCH_X86)
check_symbol_exists("__x86_64__" "" ARCH_X64)
check_symbol_exists("__arm__" "" ARCH_ARM)
check_symbol_exists("__aarch64__" "" ARCH_ARM64)
check_symbol_exists("__mips__" "" ARCH_MIPS)
endif (WIN32)
endfunction(detect_current_arch)
#
# Target CPU
set(TARGET_CPU "" CACHE STRING "Target CPU, used as --target_cpu argument")
set(TARGET_CPU_LIST x86 x64 arm arm64 mipsel)
if (TARGET_CPU STREQUAL "")
detect_current_arch()
if (ARCH_X64)
set(TARGET_CPU "x64")
elseif (ARCH_X86)
set(TARGET_CPU "x86")
elseif (ARCH_ARM64)
set(TARGET_CPU "arm64")
elseif (ARCH_ARM)
set(TARGET_CPU "arm")
elseif (ARCH_MIPS)
set(TARGET_CPU "mipsel")
else ()
set(TARGET_CPU ${CMAKE_SYSTEM_PROCESSOR})
endif (ARCH_X64)
endif (TARGET_CPU STREQUAL "")
if (NOT ${TARGET_CPU} IN_LIST TARGET_CPU_LIST)
message(FATAL_ERROR "Unknown value '${TARGET_CPU}' for variable TARGET_CPU, options are: ${TARGET_CPU_LIST}")
endif (NOT ${TARGET_CPU} IN_LIST TARGET_CPU_LIST)
if (UNIX)
if (ARCH_X86)
set(LIBWEBRTC_REQUIRED_CXX_FLAGS "-m32")
endif (ARCH_X86)
set(LIBWEBRTC_REQUIRED_CXX_FLAGS "${LIBWEBRTC_REQUIRED_CXX_FLAGS} -std=gnu++0x")
list(APPEND LIBWEBRTC_DEFINITIONS
WEBRTC_POSIX _GLIBCXX_USE_CXX11_ABI=0 _CRT_SECURE_NO_WARNINGS)
elseif (WIN32)
set(LIBWEBRTC_REQUIRED_C_FLAGS_DEBUG "/MTd")
set(LIBWEBRTC_REQUIRED_C_FLAGS_RELEASE "/MT")
set(LIBWEBRTC_REQUIRED_CXX_FLAGS_DEBUG "/MTd")
set(LIBWEBRTC_REQUIRED_CXX_FLAGS_RELEASE "/MT")
list(APPEND LIBWEBRTC_DEFINITIONS WEBRTC_WIN NOMINMAX _CRT_SECURE_NO_WARNINGS)
endif(UNIX)