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https://github.com/civetweb/civetweb
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113 lines
3.4 KiB
CMake
113 lines
3.4 KiB
CMake
#.rst:
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# FindWinSock
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# --------
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#
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# Find the native realtime includes and library.
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#
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# IMPORTED Targets
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# ^^^^^^^^^^^^^^^^
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#
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# This module defines :prop_tgt:`IMPORTED` target ``WINSOCK::WINSOCK``, if
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# WINSOCK has been found.
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#
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# Result Variables
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# ^^^^^^^^^^^^^^^^
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#
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# This module defines the following variables:
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#
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# ::
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#
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# WINSOCK_INCLUDE_DIRS - where to find winsock.h, etc.
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# WINSOCK_LIBRARIES - List of libraries when using librt.
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# WINSOCK_FOUND - True if realtime library found.
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#
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# Hints
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# ^^^^^
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#
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# A user may set ``WINSOCK_ROOT`` to a realtime installation root to tell this
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# module where to look.
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macro(REMOVE_DUPLICATE_PATHS LIST_VAR)
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set(WINSOCK_LIST "")
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foreach(PATH IN LISTS ${LIST_VAR})
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get_filename_component(PATH "${PATH}" REALPATH)
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list(APPEND WINSOCK_LIST "${PATH}")
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endforeach(PATH)
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set(${LIST_VAR} ${WINSOCK_LIST})
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list(REMOVE_DUPLICATES ${LIST_VAR})
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endmacro(REMOVE_DUPLICATE_PATHS)
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set(WINSOCK_INCLUDE_PATHS "${WINSOCK_ROOT}/include/")
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if(MINGW)
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file(TOUCH ${CMAKE_BINARY_DIR}/nul)
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execute_process(
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COMMAND ${CMAKE_C_COMPILER} -xc -E -v -
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RESULT_VARIABLE RESULT
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INPUT_FILE nul
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ERROR_VARIABLE ERR
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OUTPUT_QUIET
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)
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if (NOT RESULT)
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string(FIND "${ERR}" "#include <...> search starts here:" START)
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string(FIND "${ERR}" "End of search list." END)
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if (NOT ${START} EQUAL -1 AND NOT ${END} EQUAL -1)
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math(EXPR START "${START} + 36")
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math(EXPR END "${END} - 1")
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math(EXPR LENGTH "${END} - ${START}")
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string(SUBSTRING "${ERR}" ${START} ${LENGTH} WINSOCK_INCLUDE_PATHS)
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string(REPLACE "\n " ";" WINSOCK_INCLUDE_PATHS "${WINSOCK_INCLUDE_PATHS}")
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list(REVERSE WINSOCK_INCLUDE_PATHS)
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endif()
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endif()
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endif()
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remove_duplicate_paths(WINSOCK_INCLUDE_PATHS)
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set(WINSOCK_LIBRARY_PATHS "${WINSOCK_ROOT}/lib/")
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if(MINGW)
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execute_process(
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COMMAND ${CMAKE_C_COMPILER} -print-search-dirs
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RESULT_VARIABLE RESULT
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OUTPUT_VARIABLE OUT
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ERROR_QUIET
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)
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if (NOT RESULT)
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string(REGEX MATCH "libraries: =([^\r\n]*)" OUT "${OUT}")
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if(CMAKE_HOST_WIN32)
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message(STATUS "not replacing ${_SEARCH_PATHS}")
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list(APPEND WINSOCK_LIBRARY_PATHS "${CMAKE_MATCH_1}")
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else()
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# On Unix-like host systems, search dirs are separated by ':'.
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# Thus we need to replace ':' with ';' to make a valid cmake list.
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string(REPLACE ":" ";" _SEARCH_PATHS "${CMAKE_MATCH_1}")
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list(APPEND WINSOCK_LIBRARY_PATHS "${_SEARCH_PATHS}")
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unset(_SEARCH_PATHS)
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endif()
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endif()
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endif()
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if ("${CMAKE_HOST_SYSTEM_PROCESSOR}" STREQUAL "AMD64" AND "${CMAKE_SIZEOF_VOID_P}" EQUAL 4)
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list(APPEND WINSOCK_LIBRARY_PATHS "C:/Windows/SysWOW64")
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endif()
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list(APPEND WINSOCK_LIBRARY_PATHS "C:/Windows/System32")
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remove_duplicate_paths(WINSOCK_LIBRARY_PATHS)
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find_path(WINSOCK_INCLUDE_DIRS
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NAMES winsock2.h
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PATHS ${WINSOCK_INCLUDE_PATHS}
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)
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find_library(WINSOCK_LIBRARIES ws2_32
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PATHS ${WINSOCK_LIBRARY_PATHS}
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NO_DEFAULT_PATH
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)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(WinSock DEFAULT_MSG WINSOCK_LIBRARIES WINSOCK_INCLUDE_DIRS)
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mark_as_advanced(WINSOCK_INCLUDE_DIRS WINSOCK_LIBRARIES)
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if(WINSOCK_FOUND)
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if(NOT TARGET WINSOCK::WINSOCK)
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add_library(WINSOCK::WINSOCK UNKNOWN IMPORTED)
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set_target_properties(WINSOCK::WINSOCK PROPERTIES
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IMPORTED_LOCATION "${WINSOCK_LIBRARIES}"
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INTERFACE_INCLUDE_DIRECTORIES "${WINSOCK_INCLUDE_DIRS}")
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endif()
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endif()
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