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# detect the OS
if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
set(SFML_OS_WINDOWS 1)
# don't use the OpenGL ES implementation on Windows
set(OPENGL_ES 0)
# detect the architecture
if("${CMAKE_GENERATOR_PLATFORM}" MATCHES "ARM64" OR "${MSVC_CXX_ARCHITECTURE_ID}" MATCHES "ARM64" OR "${CMAKE_SYSTEM_PROCESSOR}" MATCHES "ARM64")
set(ARCH_ARM64 1)
elseif(CMAKE_SIZEOF_VOID_P EQUAL 4)
set(ARCH_X86 1)
elseif(CMAKE_SIZEOF_VOID_P EQUAL 8)
set(ARCH_X64 1)
else()
message(FATAL_ERROR "Unsupported architecture")
return()
endif()
elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
set(SFML_OS_UNIX 1)
if(ANDROID)
set(SFML_OS_ANDROID 1)
# use the OpenGL ES implementation on Android
set(OPENGL_ES 1)
else()
set(SFML_OS_LINUX 1)
# don't use the OpenGL ES implementation on Linux
set(OPENGL_ES 0)
endif()
elseif(CMAKE_SYSTEM_NAME MATCHES "^k?FreeBSD$")
set(SFML_OS_FREEBSD 1)
# don't use the OpenGL ES implementation on FreeBSD
set(OPENGL_ES 0)
elseif(CMAKE_SYSTEM_NAME MATCHES "^OpenBSD$")
set(SFML_OS_OPENBSD 1)
# don't use the OpenGL ES implementation on OpenBSD
set(OPENGL_ES 0)
elseif(CMAKE_SYSTEM_NAME MATCHES "^NetBSD$")
set(SFML_OS_NETBSD 1)
# don't use the OpenGL ES implementation on NetBSD
set(OPENGL_ES 0)
elseif(${CMAKE_SYSTEM_NAME} STREQUAL "iOS")
set(SFML_OS_IOS 1)
# use the OpenGL ES implementation on iOS
set(OPENGL_ES 1)
elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
set(SFML_OS_MACOS 1)
# don't use the OpenGL ES implementation on macOS
set(OPENGL_ES 0)
elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Android")
set(SFML_OS_ANDROID 1)
# use the OpenGL ES implementation on Android
set(OPENGL_ES 1)
# comparing CMAKE_SYSTEM_NAME with "CYGWIN" generates a false warning depending on the CMake version
# let's avoid it so the actual error is more visible
elseif(${CYGWIN})
message(FATAL_ERROR "Unfortunately SFML doesn't support Cygwin's 'hybrid' status between both Windows and Linux derivatives.\nIf you insist on using the GCC, please use a standalone build of MinGW without the Cygwin environment instead.")
else()
message(FATAL_ERROR "Unsupported operating system or environment")
return()
endif()
# detect the compiler
# Note: The detection is order is important because:
# - Visual Studio can both use MSVC and Clang
# - GNUCXX can still be set on macOS when using Clang
if(MSVC)
set(SFML_COMPILER_MSVC 1)
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(SFML_COMPILER_CLANG_CL 1)
endif()
elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(SFML_COMPILER_CLANG 1)
execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "-v" OUTPUT_VARIABLE CLANG_COMPILER_VERSION ERROR_VARIABLE CLANG_COMPILER_VERSION)
elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
set(SFML_COMPILER_GCC 1)
execute_process(COMMAND "${CMAKE_CXX_COMPILER}" "-v" OUTPUT_VARIABLE GCC_COMPILER_VERSION ERROR_VARIABLE GCC_COMPILER_VERSION)
string(REGEX MATCHALL ".*(tdm[64]*-[1-9]).*" SFML_COMPILER_GCC_TDM "${GCC_COMPILER_VERSION}")
else()
message(WARNING "Unrecognized compiler: ${CMAKE_CXX_COMPILER_ID}. Use at your own risk.")
endif()
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