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122 lines
3.8 KiB
122 lines
3.8 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindLibUV
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---------
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Find libuv includes and library.
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Imported Targets
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^^^^^^^^^^^^^^^^
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An :ref:`imported target <Imported targets>` named
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``LibUV::LibUV`` is provided if libuv has been found.
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Result Variables
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^^^^^^^^^^^^^^^^
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This module defines the following variables:
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``LibUV_FOUND``
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True if libuv was found, false otherwise.
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``LibUV_INCLUDE_DIRS``
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Include directories needed to include libuv headers.
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``LibUV_LIBRARIES``
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Libraries needed to link to libuv.
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``LibUV_VERSION``
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The version of libuv found.
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``LibUV_VERSION_MAJOR``
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The major version of libuv.
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``LibUV_VERSION_MINOR``
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The minor version of libuv.
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``LibUV_VERSION_PATCH``
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The patch version of libuv.
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Cache Variables
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^^^^^^^^^^^^^^^
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This module uses the following cache variables:
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``LibUV_LIBRARY``
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The location of the libuv library file.
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``LibUV_INCLUDE_DIR``
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The location of the libuv include directory containing ``uv.h``.
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The cache variables should not be used by project code.
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They may be set by end users to point at libuv components.
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#]=======================================================================]
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#-----------------------------------------------------------------------------
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find_library(LibUV_LIBRARY
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NAMES uv
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)
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mark_as_advanced(LibUV_LIBRARY)
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find_path(LibUV_INCLUDE_DIR
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NAMES uv.h
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)
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mark_as_advanced(LibUV_INCLUDE_DIR)
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#-----------------------------------------------------------------------------
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# Extract version number if possible.
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set(_LibUV_H_REGEX "#[ \t]*define[ \t]+UV_VERSION_(MAJOR|MINOR|PATCH)[ \t]+[0-9]+")
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if(LibUV_INCLUDE_DIR AND EXISTS "${LibUV_INCLUDE_DIR}/uv-version.h")
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file(STRINGS "${LibUV_INCLUDE_DIR}/uv-version.h" _LibUV_H REGEX "${_LibUV_H_REGEX}")
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elseif(LibUV_INCLUDE_DIR AND EXISTS "${LibUV_INCLUDE_DIR}/uv.h")
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file(STRINGS "${LibUV_INCLUDE_DIR}/uv.h" _LibUV_H REGEX "${_LibUV_H_REGEX}")
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else()
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set(_LibUV_H "")
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endif()
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foreach(c MAJOR MINOR PATCH)
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if(_LibUV_H MATCHES "#[ \t]*define[ \t]+UV_VERSION_${c}[ \t]+([0-9]+)")
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set(_LibUV_VERSION_${c} "${CMAKE_MATCH_1}")
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else()
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unset(_LibUV_VERSION_${c})
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endif()
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endforeach()
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if(DEFINED _LibUV_VERSION_MAJOR AND DEFINED _LibUV_VERSION_MINOR)
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set(LibUV_VERSION_MAJOR "${_LibUV_VERSION_MAJOR}")
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set(LibUV_VERSION_MINOR "${_LibUV_VERSION_MINOR}")
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set(LibUV_VERSION "${LibUV_VERSION_MAJOR}.${LibUV_VERSION_MINOR}")
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if(DEFINED _LibUV_VERSION_PATCH)
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set(LibUV_VERSION_PATCH "${_LibUV_VERSION_PATCH}")
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set(LibUV_VERSION "${LibUV_VERSION}.${LibUV_VERSION_PATCH}")
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else()
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unset(LibUV_VERSION_PATCH)
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endif()
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else()
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set(LibUV_VERSION_MAJOR "")
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set(LibUV_VERSION_MINOR "")
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set(LibUV_VERSION_PATCH "")
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set(LibUV_VERSION "")
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endif()
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unset(_LibUV_VERSION_MAJOR)
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unset(_LibUV_VERSION_MINOR)
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unset(_LibUV_VERSION_PATCH)
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unset(_LibUV_H_REGEX)
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unset(_LibUV_H)
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#-----------------------------------------------------------------------------
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include(${CMAKE_CURRENT_LIST_DIR}/../../Modules/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibUV
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FOUND_VAR LibUV_FOUND
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REQUIRED_VARS LibUV_LIBRARY LibUV_INCLUDE_DIR
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VERSION_VAR LibUV_VERSION
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)
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set(LIBUV_FOUND ${LibUV_FOUND})
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#-----------------------------------------------------------------------------
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# Provide documented result variables and targets.
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if(LibUV_FOUND)
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set(LibUV_INCLUDE_DIRS ${LibUV_INCLUDE_DIR})
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set(LibUV_LIBRARIES ${LibUV_LIBRARY})
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if(NOT TARGET LibUV::LibUV)
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add_library(LibUV::LibUV UNKNOWN IMPORTED)
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set_target_properties(LibUV::LibUV PROPERTIES
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IMPORTED_LOCATION "${LibUV_LIBRARY}"
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INTERFACE_INCLUDE_DIRECTORIES "${LibUV_INCLUDE_DIRS}"
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)
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endif()
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endif()
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