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