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0e96a20478
Replace our hard-coded default for `/Zi` with a first-class abstraction to select the debug information format an enumeration of logical names. We've long hesitated to do this because the idea of "debug information format" touches on related concepts on several platforms. Avoid that scope creep by simply defining an abstraction that applies only when targeting the MSVC ABI on Windows. Removing the old default flag requires a policy because existing projects may rely on string processing to edit them and choose a runtime library under the old behavior. Add policy CMP0141 to provide compatibility. Fixes: #10189
32 lines
1.1 KiB
CMake
32 lines
1.1 KiB
CMake
enable_language(CXX)
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cmake_policy(GET CMP0141 cmp0141)
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if(cmp0141 STREQUAL "NEW")
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if(NOT CMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT)
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message(SEND_ERROR "CMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT not set under NEW behavior")
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endif()
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else()
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if(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT)
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message(SEND_ERROR "CMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT is set under OLD behavior")
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endif()
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endif()
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if(cmp0141 STREQUAL "NEW")
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if(CMAKE_CXX_FLAGS_DEBUG MATCHES "[/-]Zi( |$)")
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message(SEND_ERROR "CMAKE_CXX_FLAGS_DEBUG has -Zi flags under NEW behavior.")
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endif()
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if(CMAKE_CXX_FLAGS_RELWITHDEBINFO MATCHES "[/-]Zi( |$)")
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message(SEND_ERROR "CMAKE_CXX_FLAGS_RELWITHDEBINFO has -Zi flags under NEW behavior.")
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endif()
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else()
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if(NOT (CMAKE_CXX_FLAGS_DEBUG MATCHES "[/-]Zi( |$)"))
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message(SEND_ERROR "CMAKE_CXX_FLAGS_DEBUG does not have -Zi flags under OLD behavior.")
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endif()
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if(NOT (CMAKE_CXX_FLAGS_RELWITHDEBINFO MATCHES "[/-]Zi( |$)"))
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message(SEND_ERROR "CMAKE_CXX_FLAGS_RELWITHDEBINFO does not have -Zi flags under OLD behavior.")
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endif()
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endif()
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set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT BogusValue)
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add_library(foo empty.cxx)
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