Abseil Common Libraries (C++) (grcp 依赖)
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34 lines
1.3 KiB
34 lines
1.3 KiB
6 years ago
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# See absl/copts/copts.py and absl/copts/generate_copts.py
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include(GENERATED_AbseilCopts)
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if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
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set(ABSL_DEFAULT_COPTS "${GCC_FLAGS}")
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set(ABSL_TEST_COPTS "${GCC_FLAGS};${GCC_TEST_FLAGS}")
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set(ABSL_EXCEPTIONS_FLAG "${GCC_EXCEPTIONS_FLAGS}")
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elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
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# MATCHES so we get both Clang and AppleClang
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set(ABSL_DEFAULT_COPTS "${LLVM_FLAGS}")
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set(ABSL_TEST_COPTS "${LLVM_FLAGS};${LLVM_TEST_FLAGS}")
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set(ABSL_EXCEPTIONS_FLAG "${LLVM_EXCEPTIONS_FLAGS}")
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elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
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set(ABSL_DEFAULT_COPTS "${MSVC_FLAGS}")
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set(ABSL_TEST_COPTS "${MSVC_FLAGS};${MSVC_TEST_FLAGS}")
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set(ABSL_EXCEPTIONS_FLAG "${MSVC_EXCEPTIONS_FLAGS}")
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else()
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message(WARNING "Unknown compiler: ${CMAKE_CXX_COMPILER}. Building with no default flags")
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set(ABSL_DEFAULT_COPTS "")
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set(ABSL_TEST_COPTS "")
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set(ABSL_EXCEPTIONS_FLAG "")
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endif()
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# This flag is used internally for Bazel builds and is kept here for consistency
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set(ABSL_EXCEPTIONS_FLAG_LINKOPTS "")
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if("${CMAKE_CXX_STANDARD}" EQUAL 98)
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message(FATAL_ERROR "Abseil requires at least C++11")
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elseif(NOT "${CMAKE_CXX_STANDARD}")
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message(STATUS "No CMAKE_CXX_STANDARD set, assuming 11")
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set(ABSL_CXX_STANDARD 11)
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else()
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set(ABSL_CXX_STANDARD "${CMAKE_CXX_STANDARD}")
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endif()
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