| # See absl/copts/copts.py and absl/copts/generate_copts.py |
| include(GENERATED_AbseilCopts) |
| |
| set(ABSL_DEFAULT_LINKOPTS "") |
| |
| if (BUILD_SHARED_LIBS AND (MSVC OR ABSL_BUILD_MONOLITHIC_SHARED_LIBS)) |
| set(ABSL_BUILD_DLL TRUE) |
| set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON) |
| else() |
| set(ABSL_BUILD_DLL FALSE) |
| endif() |
| |
| if(APPLE AND CMAKE_CXX_COMPILER_ID MATCHES [[Clang]]) |
| # Some CMake targets (not known at the moment of processing) could be set to |
| # compile for multiple architectures as specified by the OSX_ARCHITECTURES |
| # property, which is target-specific. We should neither inspect nor rely on |
| # any CMake property or variable to detect an architecture, in particular: |
| # |
| # - CMAKE_OSX_ARCHITECTURES |
| # is just an initial value for OSX_ARCHITECTURES; set too early. |
| # |
| # - OSX_ARCHITECTURES |
| # is a per-target property; targets could be defined later, and their |
| # properties could be modified any time later. |
| # |
| # - CMAKE_SYSTEM_PROCESSOR |
| # does not reflect multiple architectures at all. |
| # |
| # When compiling for multiple architectures, a build system can invoke a |
| # compiler either |
| # |
| # - once: a single command line for multiple architectures (Ninja build) |
| # - twice: two command lines per each architecture (Xcode build system) |
| # |
| # If case of Xcode, it would be possible to set an Xcode-specific attributes |
| # like XCODE_ATTRIBUTE_OTHER_CPLUSPLUSFLAGS[arch=arm64] or similar. |
| # |
| # In both cases, the viable strategy is to pass all arguments at once, allowing |
| # the compiler to dispatch arch-specific arguments to a designated backend. |
| set(ABSL_RANDOM_RANDEN_COPTS "") |
| foreach(_arch IN ITEMS "x86_64" "arm64") |
| string(TOUPPER "${_arch}" _arch_uppercase) |
| string(REPLACE "X86_64" "X64" _arch_uppercase ${_arch_uppercase}) |
| foreach(_flag IN LISTS ABSL_RANDOM_HWAES_${_arch_uppercase}_FLAGS) |
| list(APPEND ABSL_RANDOM_RANDEN_COPTS "SHELL:-Xarch_${_arch} ${_flag}") |
| endforeach() |
| endforeach() |
| # If a compiler happens to deal with an argument for a currently unused |
| # architecture, it will warn about an unused command line argument. |
| option(ABSL_RANDOM_RANDEN_COPTS_WARNING OFF |
| "Warn if one of ABSL_RANDOM_RANDEN_COPTS is unused") |
| if(ABSL_RANDOM_RANDEN_COPTS AND NOT ABSL_RANDOM_RANDEN_COPTS_WARNING) |
| list(APPEND ABSL_RANDOM_RANDEN_COPTS "-Wno-unused-command-line-argument") |
| endif() |
| elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64|AMD64") |
| if (MSVC) |
| set(ABSL_RANDOM_RANDEN_COPTS "${ABSL_RANDOM_HWAES_MSVC_X64_FLAGS}") |
| else() |
| set(ABSL_RANDOM_RANDEN_COPTS "${ABSL_RANDOM_HWAES_X64_FLAGS}") |
| endif() |
| elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm.*|aarch64") |
| if (CMAKE_SIZEOF_VOID_P STREQUAL "8") |
| set(ABSL_RANDOM_RANDEN_COPTS "${ABSL_RANDOM_HWAES_ARM64_FLAGS}") |
| elseif(CMAKE_SIZEOF_VOID_P STREQUAL "4") |
| set(ABSL_RANDOM_RANDEN_COPTS "${ABSL_RANDOM_HWAES_ARM32_FLAGS}") |
| else() |
| message(WARNING "Value of CMAKE_SIZEOF_VOID_P (${CMAKE_SIZEOF_VOID_P}) is not supported.") |
| endif() |
| else() |
| set(ABSL_RANDOM_RANDEN_COPTS "") |
| endif() |
| |
| |
| if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU") |
| set(ABSL_DEFAULT_COPTS "${ABSL_GCC_FLAGS}") |
| set(ABSL_TEST_COPTS "${ABSL_GCC_TEST_FLAGS}") |
| elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang") # MATCHES so we get both Clang and AppleClang |
| if(MSVC) |
| # clang-cl is half MSVC, half LLVM |
| set(ABSL_DEFAULT_COPTS "${ABSL_CLANG_CL_FLAGS}") |
| set(ABSL_TEST_COPTS "${ABSL_CLANG_CL_TEST_FLAGS}") |
| else() |
| set(ABSL_DEFAULT_COPTS "${ABSL_LLVM_FLAGS}") |
| set(ABSL_TEST_COPTS "${ABSL_LLVM_TEST_FLAGS}") |
| endif() |
| elseif(CMAKE_CXX_COMPILER_ID STREQUAL "IntelLLVM") |
| # IntelLLVM is similar to Clang, with some additional flags. |
| if(MSVC) |
| # clang-cl is half MSVC, half LLVM |
| set(ABSL_DEFAULT_COPTS "${ABSL_CLANG_CL_FLAGS}") |
| set(ABSL_TEST_COPTS "${ABSL_CLANG_CL_TEST_FLAGS}") |
| else() |
| set(ABSL_DEFAULT_COPTS "${ABSL_LLVM_FLAGS}") |
| set(ABSL_TEST_COPTS "${ABSL_LLVM_TEST_FLAGS}") |
| endif() |
| elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") |
| set(ABSL_DEFAULT_COPTS "${ABSL_MSVC_FLAGS}") |
| set(ABSL_TEST_COPTS "${ABSL_MSVC_TEST_FLAGS}") |
| set(ABSL_DEFAULT_LINKOPTS "${ABSL_MSVC_LINKOPTS}") |
| else() |
| message(WARNING "Unknown compiler: ${CMAKE_CXX_COMPILER}. Building with no default flags") |
| set(ABSL_DEFAULT_COPTS "") |
| set(ABSL_TEST_COPTS "") |
| endif() |
| |
| set(ABSL_CXX_STANDARD "${CMAKE_CXX_STANDARD}") |