2b2344b412
Replace our hard-coded default for `/RTC1` with a first-class abstraction to select runtime checks from an enumeration of logical names. Add a `MSVC_RUNTIME_CHECKS` target property and corresponding `CMAKE_MSVC_RUNTIME_CHECKS` variable. Removing the old default flag requires a policy because existing projects may rely on string processing to edit them and choose runtime checks under the old behavior. Add policy CMP0184 to provide compatibility. Fixes: #26614
51 lines
2.2 KiB
CMake
51 lines
2.2 KiB
CMake
if("${CMAKE_${lang}_COMPILER_ID};${CMAKE_${lang}_SIMULATE_ID};${CMAKE_${lang}_COMPILER_FRONTEND_VARIANT}" STREQUAL "Clang;MSVC;GNU")
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# Clang does not actually support these, so Windows-Clang passes no flags.
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set(empty_PossibleDataLoss 1)
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set(empty_StackFrameErrorCheck 1)
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set(empty_UninitializedVariable 1)
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set(empty_RTCsu 1)
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elseif("${CMAKE_${lang}_COMPILER_ID};${CMAKE_${lang}_SIMULATE_ID};${lang}" MATCHES "^Intel(LLVM)?;MSVC;Fortran$")
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# IntelLLVM Fortran does not actually support these, so Windows-IntelLLVM-Fortran passes no flags.
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set(empty_PossibleDataLoss 1)
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set(empty_StackFrameErrorCheck 1)
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set(empty_UninitializedVariable 0) # this one is supported
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set(empty_RTCsu 1)
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elseif(CMAKE_${lang}_COMPILER_ID STREQUAL "MSVC" AND CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 14)
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set(empty_PossibleDataLoss 1)
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set(empty_StackFrameErrorCheck 0)
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set(empty_UninitializedVariable 1)
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set(empty_RTCsu 0)
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else()
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set(empty_PossibleDataLoss 0)
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set(empty_StackFrameErrorCheck 0)
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set(empty_UninitializedVariable 0)
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set(empty_RTCsu 0)
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endif()
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set(var "CMAKE_${lang}_COMPILE_OPTIONS_MSVC_RUNTIME_CHECKS_PossibleDataLoss")
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if(empty_PossibleDataLoss AND ${var} STREQUAL "")
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set("${var}" "-DTEST_RTCc")
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else()
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string(REPLACE "-RTCc" "-RTCc${delimiter}-DTEST_RTCc" "${var}" "${${var}}")
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endif()
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set(var "CMAKE_${lang}_COMPILE_OPTIONS_MSVC_RUNTIME_CHECKS_StackFrameErrorCheck")
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if(empty_StackFrameErrorCheck AND ${var} STREQUAL "")
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set("${var}" "-DTEST_RTCs")
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else()
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string(REPLACE "-RTCs" "-RTCs${delimiter}-DTEST_RTCs" "${var}" "${${var}}")
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string(REPLACE "-GZ" "-GZ${delimiter}-DTEST_RTCs" "${var}" "${${var}}")
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endif()
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set(var "CMAKE_${lang}_COMPILE_OPTIONS_MSVC_RUNTIME_CHECKS_UninitializedVariable")
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if(empty_UninitializedVariable AND ${var} STREQUAL "")
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set("${var}" "-DTEST_RTCu")
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else()
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string(REPLACE "-RTCu" "-RTCu${delimiter}-DTEST_RTCu" "${var}" "${${var}}")
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endif()
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set(var "CMAKE_${lang}_COMPILE_OPTIONS_MSVC_RUNTIME_CHECKS_RTCsu")
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if(empty_RTCsu AND ${var} STREQUAL "")
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set("${var}" "-DTEST_RTCsu")
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else()
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string(REPLACE "-RTC1" "-RTC1${delimiter}-DTEST_RTCsu" "${var}" "${${var}}")
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string(REPLACE "-GZ" "-GZ${delimiter}-DTEST_RTCsu" "${var}" "${${var}}")
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endif()
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