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# SPDX-FileCopyrightText: 2011 Fredrik Höglund <fredrik@kde.org>
# SPDX-FileCopyrightText: 2013 Martin Gräßlin <mgraesslin@kde.org>
# SPDX-FileCopyrightText: 2014-2015 Alex Merry <alex.merry@kde.org>
#
# SPDX-License-Identifier: BSD-3-Clause
#[=======================================================================[.rst:
FindXCB
-------
Try to find XCB.
This is a component-based find module, which makes use of the COMPONENTS and
OPTIONAL_COMPONENTS arguments to find_module. The following components are
available::
XCB
ATOM AUX COMPOSITE CURSOR DAMAGE
DPMS DRI2 DRI3 EVENT EWMH
GLX ICCCM IMAGE KEYSYMS PRESENT
RANDR RECORD RENDER RENDERUTIL RES
SCREENSAVER SHAPE SHM SYNC UTIL
XEVIE XF86DRI XFIXES XINERAMA XINPUT
XKB XPRINT XTEST XV XVMC
If no components are specified, this module will act as though all components
except XINPUT (which is considered unstable) were passed to
OPTIONAL_COMPONENTS.
This module will define the following variables, independently of the
components searched for or found:
``XCB_FOUND``
True if (the requestion version of) xcb is available
``XCB_VERSION``
Found xcb version
``XCB_TARGETS``
A list of all targets imported by this module (note that there may be more
than the components that were requested)
``XCB_LIBRARIES``
This can be passed to target_link_libraries() instead of the imported
targets
``XCB_INCLUDE_DIRS``
This should be passed to target_include_directories() if the targets are
not used for linking
``XCB_DEFINITIONS``
This should be passed to target_compile_options() if the targets are not
used for linking
For each searched-for components, ``XCB_<component>_FOUND`` will be set to
true if the corresponding xcb library was found, and false otherwise. If
``XCB_<component>_FOUND`` is true, the imported target ``XCB::<component>``
will be defined. This module will also attempt to determine
``XCB_*_VERSION`` variables for each imported target, although
``XCB_VERSION`` should normally be sufficient.
In general we recommend using the imported targets, as they are easier to use
and provide more control. Bear in mind, however, that if any target is in the
link interface of an exported library, it must be made available by the
package config file.
Since pre-1.0.0.
#]=======================================================================]
include(${CMAKE_CURRENT_LIST_DIR}/ECMFindModuleHelpersStub.cmake)
ecm_find_package_version_check(XCB)
# Note that this list needs to be ordered such that any component
# appears after its dependencies
set(XCB_known_components
XCB
RENDER
SHAPE
XFIXES
SHM
ATOM
AUX
COMPOSITE
CURSOR
DAMAGE
DPMS
DRI2
DRI3
EVENT
EWMH
GLX
ICCCM
IMAGE
KEYSYMS
PRESENT
RANDR
RECORD
RENDERUTIL
RES
SCREENSAVER
SYNC
UTIL
XEVIE
XF86DRI
XINERAMA
XINPUT
XKB
XPRINT
XTEST
XV
XVMC
)
# XINPUT is unstable; do not include it by default
set(XCB_default_components ${XCB_known_components})
list(REMOVE_ITEM XCB_default_components "XINPUT")
# default component info: xcb components have fairly predictable
# header files, library names and pkg-config names
foreach(_comp ${XCB_known_components})
string(TOLOWER "${_comp}" _lc_comp)
set(XCB_${_comp}_component_deps XCB)
set(XCB_${_comp}_pkg_config "xcb-${_lc_comp}")
set(XCB_${_comp}_lib "xcb-${_lc_comp}")
set(XCB_${_comp}_header "xcb/${_lc_comp}.h")
endforeach()
# exceptions
set(XCB_XCB_component_deps)
set(XCB_COMPOSITE_component_deps XCB XFIXES)
set(XCB_DAMAGE_component_deps XCB XFIXES)
set(XCB_IMAGE_component_deps XCB SHM)
set(XCB_RENDERUTIL_component_deps XCB RENDER)
set(XCB_XFIXES_component_deps XCB RENDER SHAPE)
set(XCB_XVMC_component_deps XCB XV)
set(XCB_XV_component_deps XCB SHM)
set(XCB_XCB_pkg_config "xcb")
set(XCB_XCB_lib "xcb")
set(XCB_ATOM_header "xcb/xcb_atom.h")
set(XCB_ATOM_lib "xcb-util")
set(XCB_AUX_header "xcb/xcb_aux.h")
set(XCB_AUX_lib "xcb-util")
set(XCB_CURSOR_header "xcb/xcb_cursor.h")
set(XCB_EVENT_header "xcb/xcb_event.h")
set(XCB_EVENT_lib "xcb-util")
set(XCB_EWMH_header "xcb/xcb_ewmh.h")
set(XCB_ICCCM_header "xcb/xcb_icccm.h")
set(XCB_IMAGE_header "xcb/xcb_image.h")
set(XCB_KEYSYMS_header "xcb/xcb_keysyms.h")
set(XCB_PIXEL_header "xcb/xcb_pixel.h")
set(XCB_RENDERUTIL_header "xcb/xcb_renderutil.h")
set(XCB_RENDERUTIL_lib "xcb-render-util")
set(XCB_UTIL_header "xcb/xcb_util.h")
ecm_find_package_parse_components(XCB
RESULT_VAR XCB_components
KNOWN_COMPONENTS ${XCB_known_components}
DEFAULT_COMPONENTS ${XCB_default_components}
)
list(FIND XCB_components "XINPUT" _XCB_XINPUT_index)
if (NOT _XCB_XINPUT_index EQUAL -1)
message(AUTHOR_WARNING "XINPUT from XCB was requested: this is EXPERIMENTAL and is likely to be unavailable on many systems!")
endif()
ecm_find_package_handle_library_components(XCB
COMPONENTS ${XCB_components}
)
find_package_handle_standard_args(XCB
FOUND_VAR
XCB_FOUND
REQUIRED_VARS
XCB_LIBRARIES
VERSION_VAR
XCB_VERSION
HANDLE_COMPONENTS
)
include(FeatureSummary)
set_package_properties(XCB PROPERTIES
URL "https://xcb.freedesktop.org/"
DESCRIPTION "X protocol C-language Binding"
)
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