obs-studio/cmake/finders/FindWayland.cmake

178 lines
5.6 KiB
CMake

#[=======================================================================[.rst
FindWayland
-----------
FindModule for Wayland and and associated components
.. versionchanged:: 3.0
Updated FindModule to CMake standards
Components
^^^^^^^^^^
.. versionadded:: 1.0
This module contains provides several components:
``Client``
``Server``
``EGL``
``Cursor``
Import targets exist for each component.
Imported Targets
^^^^^^^^^^^^^^^^
.. versionadded:: 2.0
This module defines the :prop_tgt:`IMPORTED` targets:
``Wayland::Client``
Wayland client component
``Wayland::Server``
Wayland server component
``Wayland::EGL``
Wayland EGL component
``Wayland::Cursor``
Wayland cursor component
Result Variables
^^^^^^^^^^^^^^^^
This module sets the following variables:
``Wayland_<COMPONENT>_FOUND``
True, if required component was found.
``Wayland_<COMPONENT>_VERSION``
Detected version of Wayland component.
``Wayland_<COMPONENT>_INCLUDE_DIRS``
Include directories needed for Wayland component.
``Wayland_<COMPONENT>_LIBRARIES``
Libraries needed to link to Wayland component.
Cache variables
^^^^^^^^^^^^^^^
The following cache variables may also be set:
``Wayland_<COMPONENT>_LIBRARY``
Path to the component of Wayland.
``Wayland_<COMPONENT>_INCLUDE_DIR``
Directory containing ``<COMPONENT>.h``.
#]=======================================================================]
# cmake-format: off
# cmake-lint: disable=C0103
# cmake-lint: disable=C0301
# cmake-format: on
include(FindPackageHandleStandardArgs)
find_package(PkgConfig QUIET)
list(APPEND _Wayland_DEFAULT_COMPONENTS Client Server EGL Cursor)
list(APPEND _Wayland_LIBRARIES wayland-client wayland-server wayland-egl wayland-cursor)
if(NOT Wayland_FIND_COMPONENTS)
set(Wayland_FIND_COMPONENTS ${_Wayland_DEFAULT_COMPONENTS})
endif()
# Wayland_find_component: Macro to setup targets for specified Wayland component
macro(Wayland_find_component component)
list(GET _Wayland_DEFAULT_COMPONENTS ${component} COMPONENT_NAME)
list(GET _Wayland_LIBRARIES ${component} COMPONENT_LIBRARY)
if(NOT TARGET Wayland::${COMPONENT_NAME})
if(PKG_CONFIG_FOUND)
pkg_search_module(PC_Wayland_${COMPONENT_NAME} QUIET ${COMPONENT_LIBRARY})
endif()
find_path(
Wayland_${COMPONENT_NAME}_INCLUDE_DIR
NAMES ${COMPONENT_LIBRARY}.h
HINTS ${PC_Wayland_${COMPONENT_NAME}_INCLUDE_DIRS}
PATHS /usr/include /usr/local/include
DOC "Wayland ${COMPONENT_NAME} include directory")
find_library(
Wayland_${COMPONENT_NAME}_LIBRARY
NAMES ${COMPONENT_LIBRARY}
HINTS ${PC_Wayland_${COMPONENT_NAME}_LIBRARY_DIRS}
PATHS /usr/lib /usr/local/lib
DOC "Wayland ${COMPONENT_NAME} location")
if(PC_Wayland_${COMPONENT_NAME}_VERSION VERSION_GREATER 0)
set(Wayland_${COMPONENT_NAME}_VERSION ${PC_Wayland_${COMPONENT_NAME}_VERSION})
else()
if(NOT Wayland_FIND_QUIETLY)
message(AUTHOR_WARNING "Failed to find Wayland ${COMPONENT_NAME} version.")
endif()
set(Wayland_${COMPONENT_NAME}_VERSION 0.0.0)
endif()
if(Wayland_${COMPONENT_NAME}_LIBRARY AND Wayland_${COMPONENT_NAME}_INCLUDE_DIR)
set(Wayland_${COMPONENT_NAME}_FOUND TRUE)
set(Wayland_${COMPONENT_NAME}_LIBRARIES ${Wayland_${COMPONENT_NAME}_LIBRARY})
set(Wayland_${COMPONENT_NAME}_INCLUDE_DIRS ${Wayland_${COMPONENT_NAME}_INCLUDE_DIR})
set(Wayland_${COMPONENT_NAME}_DEFINITIONS ${PC_Wayland_${COMPONENT_NAME}_CFLAGS_OTHER})
mark_as_advanced(Wayland_${COMPONENT_NAME}_LIBRARY Wayland_${COMPONENT_NAME}_INCLUDE_DIR)
if(IS_ABSOLUTE "${Wayland_${COMPONENT_NAME}_LIBRARY}")
add_library(Wayland::${COMPONENT_NAME} UNKNOWN IMPORTED)
set_property(TARGET Wayland::${COMPONENT_NAME} PROPERTY IMPORTED_LOCATION
"${Wayland_${COMPONENT_NAME}_LIBRARY}")
else()
add_library(Wayland::${COMPONENT_NAME} INTERFACE IMPORTED)
set_property(TARGET Wayland::${COMPONENT_NAME} PROPERTY IMPORTED_LIBNAME "${Wayland_${COMPONENT_NAME}_LIBRARY}")
endif()
set_target_properties(
Wayland::${COMPONENT_NAME}
PROPERTIES INTERFACE_COMPILE_OPTIONS "${PC_Wayland_${COMPONENT_NAME}_CFLAGS_OTHER}"
INTERFACE_INCLUDE_DIRECTORIES "${Wayland_${COMPONENT_NAME}_INCLUDE_DIR}"
VERSION ${Wayland_${COMPONENT_NAME}_VERSION})
list(APPEND Wayland_COMPONENTS Wayland::${COMPONENT_NAME})
list(APPEND Wayland_INCLUDE_DIRS ${Wayland_${COMPONENT_NAME}_INCLUDE_DIR})
list(APPEND Wayland_LIBRARIES ${Wayland_${COMPONENT_NAME}_LIBRARY})
if(NOT Wayland_VERSION)
set(Wayland_VERSION ${Wayland_${COMPONENT_NAME}_VERSION})
endif()
endif()
else()
list(APPEND Wayland_COMPONENTS Wayland::${COMPONENT_NAME})
endif()
endmacro()
foreach(component IN LISTS Wayland_FIND_COMPONENTS)
list(FIND _Wayland_DEFAULT_COMPONENTS "${component}" valid_component)
if(valid_component GREATER_EQUAL 0)
wayland_find_component(${valid_component})
else()
message(FATAL_ERROR "Unknown Wayland component required: ${component}.")
endif()
endforeach()
find_package_handle_standard_args(
Wayland
REQUIRED_VARS Wayland_LIBRARIES Wayland_INCLUDE_DIRS
VERSION_VAR Wayland_VERSION
HANDLE_COMPONENTS REASON_FAILURE_MESSAGE "Ensure that Wayland is installed on the system.")
unset(_Wayland_DEFAULT_COMPONENTS)
unset(_Wayland_LIBRARIES)
include(FeatureSummary)
set_package_properties(
Wayland PROPERTIES
URL "https://wayland.freedesktop.org"
DESCRIPTION
"A replacement for the X11 window system protocol and architecture with the aim to be easier to develop, extend, and maintain."
)