function(vcpkg_check_linkage) cmake_parse_arguments(PARSE_ARGV 0 arg "ONLY_STATIC_LIBRARY;ONLY_DYNAMIC_LIBRARY;ONLY_DYNAMIC_CRT;ONLY_STATIC_CRT" "" "" ) if(DEFINED arg_UNPARSED_ARGUMENTS) message(WARNING "${CMAKE_CURRENT_FUNCTION} was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}") endif() if(arg_ONLY_STATIC_LIBRARY AND arg_ONLY_DYNAMIC_LIBRARY) message(FATAL_ERROR "Requesting both ONLY_STATIC_LIBRARY and ONLY_DYNAMIC_LIBRARY; this is an error.") endif() if(arg_ONLY_STATIC_CRT AND arg_ONLY_DYNAMIC_CRT) message(FATAL_ERROR "Requesting both ONLY_STATIC_CRT and ONLY_DYNAMIC_CRT; this is an error.") endif() if(arg_ONLY_STATIC_LIBRARY AND "${VCPKG_LIBRARY_LINKAGE}" STREQUAL "dynamic") message(STATUS "Note: ${PORT} only supports static library linkage. Building static library.") set(VCPKG_LIBRARY_LINKAGE static PARENT_SCOPE) elseif(arg_ONLY_DYNAMIC_LIBRARY AND "${VCPKG_LIBRARY_LINKAGE}" STREQUAL "static") message(STATUS "Note: ${PORT} only supports dynamic library linkage. Building dynamic library.") if("${VCPKG_CRT_LINKAGE}" STREQUAL "static") message(FATAL_ERROR "Refusing to build unexpected dynamic library against the static CRT. If this is desired, please configure your triplet to directly request this configuration.") endif() set(VCPKG_LIBRARY_LINKAGE dynamic PARENT_SCOPE) endif() if(arg_ONLY_DYNAMIC_CRT AND "${VCPKG_CRT_LINKAGE}" STREQUAL "static") message(FATAL_ERROR "${PORT} only supports dynamic crt linkage") elseif(arg_ONLY_STATIC_CRT AND "${VCPKG_CRT_LINKAGE}" STREQUAL "dynamic") message(FATAL_ERROR "${PORT} only supports static crt linkage") endif() endfunction()