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102 lines
2.7 KiB
CMake
102 lines
2.7 KiB
CMake
#[=======================================================================[.rst
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FindLibv4l2
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-----------
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FindModule for Libv4l2 and associated libraries
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.. versionchanged:: 3.0
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Updated FindModule to CMake standards
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Imported Targets
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^^^^^^^^^^^^^^^^
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.. versionadded:: 2.0
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This module defines the :prop_tgt:`IMPORTED` target ``Libv4l2::Libv4l2``.
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Result Variables
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^^^^^^^^^^^^^^^^
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This module sets the following variables:
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``Libv4l2_FOUND``
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True, if all required components and the core library were found.
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``Libv4l2_VERSION``
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Detected version of found Libv4l2 libraries.
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Cache variables
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^^^^^^^^^^^^^^^
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The following cache variables may also be set:
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``Libv4l2_LIBRARY``
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Path to the library component of Libv4l2.
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``Libv4l2_INCLUDE_DIR``
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Directory containing ``libv4l2.h``.
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#]=======================================================================]
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# cmake-format: off
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# cmake-lint: disable=C0103
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# cmake-format: on
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include(FindPackageHandleStandardArgs)
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find_package(PkgConfig QUIET)
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if(PKG_CONFIG_FOUND)
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pkg_search_module(PC_Libv4l2 QUIET libv4l2 v4l2 v4l-utils)
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endif()
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find_path(
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Libv4l2_INCLUDE_DIR
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NAMES libv4l2.h
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HINTS ${PC_Libv4l2_INCLUDE_DIRS}
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PATHS /usr/include /usr/local/include
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DOC "Libv4l2 include directory")
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find_library(
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Libv4l2_LIBRARY
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NAMES v4l2
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HINTS ${PC_Libv4l2_LIBRARY_DIRS}
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PATHS /usr/lib /usr/local/lib
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DOC "Libv4l2 location")
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if(PC_Libv4l2_VERSION VERSION_GREATER 0)
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set(Libv4l2_VERSION ${PC_Libv4l2_VERSION})
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else()
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if(NOT Libv4l2_FIND_QUIETLY)
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message(AUTHOR_WARNING "Failed to find Libv4l2 version.")
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endif()
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set(Libv4l2_VERSION 0.0.0)
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endif()
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find_package_handle_standard_args(
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Libv4l2
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REQUIRED_VARS Libv4l2_LIBRARY Libv4l2_INCLUDE_DIR
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VERSION_VAR Libv4l2_VERSION REASON_FAILURE_MESSAGE "Ensure that v4l-utils is installed on the system.")
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mark_as_advanced(Libv4l2_INCLUDE_DIR Libv4l2_LIBRARY)
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if(Libv4l2_FOUND)
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if(NOT TARGET Libv4l2::Libv4l2)
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if(IS_ABSOLUTE "${Libv4l2_LIBRARY}")
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add_library(Libv4l2::Libv4l2 UNKNOWN IMPORTED)
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set_property(TARGET Libv4l2::Libv4l2 PROPERTY IMPORTED_LOCATION "${Libv4l2_LIBRARY}")
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else()
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add_library(Libv4l2::Libv4l2 INTERFACE IMPORTED)
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set_property(TARGET Libv4l2::Libv4l2 PROPERTY IMPORTED_LIBNAME "${Libv4l2_LIBRARY}")
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endif()
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set_target_properties(
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Libv4l2::Libv4l2
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PROPERTIES INTERFACE_COMPILE_OPTIONS "${PC_Libv4l2_CFLAGS_OTHER}"
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INTERFACE_INCLUDE_DIRECTORIES "${Libv4l2_INCLUDE_DIR}"
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VERSION ${Libv4l2_VERSION})
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endif()
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endif()
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include(FeatureSummary)
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set_package_properties(
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Lib4l2 PROPERTIES
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URL "https://linuxtv.org/wiki/index.php/V4l-utils"
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DESCRIPTION "The v4l-utils are a series of packages for handling media devices.")
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