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48 lines
1.6 KiB
CMake
48 lines
1.6 KiB
CMake
if(MSVC)
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if(CMAKE_VERSION VERSION_LESS 3.15.0)
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message(FATAL_ERROR "windows builds require CMake >= 3.15")
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endif()
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if(NOT DEFINED CMAKE_MSVC_RUNTIME_LIBRARY)
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if(MSVC_RUNTIME STREQUAL "dynamic")
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set(MSVC_DEFAULT_RUNTIME "MultiThreadedDLL")
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elseif(MSVC_RUNTIME STREQUAL "static")
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set(MSVC_DEFAULT_RUNTIME "MultiThreaded")
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else()
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message(WARNING "invalid MSVC_RUNTIME (deprecated) value '${MSVC_RUNTIME}', ignoring")
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endif()
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if(MSVC_DEFAULT_RUNTIME)
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message(
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"Using CMAKE_MSVC_RUNTIME_LIBRARY=${MSVC_DEFAULT_RUNTIME} (derived from MSVC_RUNTIME (deprecated) value '${MSVC_RUNTIME}')"
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)
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else()
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set(MSVC_DEFAULT_RUNTIME "MultiThreaded")
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string(APPEND MSVC_DEFAULT_RUNTIME "$<$<CONFIG:Debug>:Debug>")
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if(BUILD_SHARED_LIBS)
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string(APPEND MSVC_DEFAULT_RUNTIME "DLL")
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endif()
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message("Using CMAKE_MSVC_RUNTIME_LIBRARY=${MSVC_DEFAULT_RUNTIME}")
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endif()
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set(CMAKE_MSVC_RUNTIME_LIBRARY ${MSVC_DEFAULT_RUNTIME} CACHE STRING "MSVC runtime")
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endif()
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message("build is using MSVC runtime ${CMAKE_MSVC_RUNTIME_LIBRARY}")
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string(FIND ${CMAKE_MSVC_RUNTIME_LIBRARY} "DLL" IS_SHARED)
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if(IS_SHARED STREQUAL "-1")
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if(BUILD_SHARED_LIBS)
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message(FATAL_ERROR "Static CRT is only supported in a fully static build")
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endif()
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message(STATUS "Use the MSVC static runtime option carefully!")
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message(STATUS "OpenSSL uses /MD by default, and is very picky")
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message(STATUS "Random freeing errors are a common sign of runtime issues")
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endif()
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if(NOT DEFINED CMAKE_SUPPRESS_REGENERATION)
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set(CMAKE_SUPPRESS_REGENERATION ON)
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endif()
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endif()
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