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tracy/cmake/ECMFindModuleHelpers.cmake

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#.rst:
# ECMFindModuleHelpers
# --------------------
#
# Helper macros for find modules: ecm_find_package_version_check(),
# ecm_find_package_parse_components() and
# ecm_find_package_handle_library_components().
#
# ::
#
# ecm_find_package_version_check(<name>)
#
# Prints warnings if the CMake version or the project's required CMake version
# is older than that required by extra-cmake-modules.
#
# ::
#
# ecm_find_package_parse_components(<name>
# RESULT_VAR <variable>
# KNOWN_COMPONENTS <component1> [<component2> [...]]
# [SKIP_DEPENDENCY_HANDLING])
#
# This macro will populate <variable> with a list of components found in
# <name>_FIND_COMPONENTS, after checking that all those components are in the
# list of KNOWN_COMPONENTS; if there are any unknown components, it will print
# an error or warning (depending on the value of <name>_FIND_REQUIRED) and call
# return().
#
# The order of components in <variable> is guaranteed to match the order they
# are listed in the KNOWN_COMPONENTS argument.
#
# If SKIP_DEPENDENCY_HANDLING is not set, for each component the variable
# <name>_<component>_component_deps will be checked for dependent components.
# If <component> is listed in <name>_FIND_COMPONENTS, then all its (transitive)
# dependencies will also be added to <variable>.
#
# ::
#
# ecm_find_package_handle_library_components(<name>
# COMPONENTS <component> [<component> [...]]
# [SKIP_DEPENDENCY_HANDLING])
# [SKIP_PKG_CONFIG])
#
# Creates an imported library target for each component. The operation of this
# macro depends on the presence of a number of CMake variables.
#
# The <name>_<component>_lib variable should contain the name of this library,
# and <name>_<component>_header variable should contain the name of a header
# file associated with it (whatever relative path is normally passed to
# '#include'). <name>_<component>_header_subdir variable can be used to specify
# which subdirectory of the include path the headers will be found in.
# ecm_find_package_components() will then search for the library
# and include directory (creating appropriate cache variables) and create an
# imported library target named <name>::<component>.
#
# Additional variables can be used to provide additional information:
#
# If SKIP_PKG_CONFIG, the <name>_<component>_pkg_config variable is set, and
# pkg-config is found, the pkg-config module given by
# <name>_<component>_pkg_config will be searched for and used to help locate the
# library and header file. It will also be used to set
# <name>_<component>_VERSION.
#
# Note that if version information is found via pkg-config,
# <name>_<component>_FIND_VERSION can be set to require a particular version
# for each component.
#
# If SKIP_DEPENDENCY_HANDLING is not set, the INTERFACE_LINK_LIBRARIES property
# of the imported target for <component> will be set to contain the imported
# targets for the components listed in <name>_<component>_component_deps.
# <component>_FOUND will also be set to false if any of the components in
# <name>_<component>_component_deps are not found. This requires the components
# in <name>_<component>_component_deps to be listed before <component> in the
# COMPONENTS argument.
#
# The following variables will be set:
#
# ``<name>_TARGETS``
# the imported targets
# ``<name>_LIBRARIES``
# the found libraries
# ``<name>_INCLUDE_DIRS``
# the combined required include directories for the components
# ``<name>_DEFINITIONS``
# the "other" CFLAGS provided by pkg-config, if any
# ``<name>_VERSION``
# the value of ``<name>_<component>_VERSION`` for the first component that
# has this variable set (note that components are searched for in the order
# they are passed to the macro), although if it is already set, it will not
# be altered
#
# Note that these variables are never cleared, so if
# ecm_find_package_handle_library_components() is called multiple times with
# different components (typically because of multiple find_package() calls) then
# ``<name>_TARGETS``, for example, will contain all the targets found in any
# call (although no duplicates).
#
# Since pre-1.0.0.
#=============================================================================
# Copyright 2014 Alex Merry <alex.merry@kde.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
macro(ecm_find_package_version_check module_name)
if(CMAKE_VERSION VERSION_LESS 2.8.12)
message(FATAL_ERROR "CMake 2.8.12 is required by Find${module_name}.cmake")
endif()
if(CMAKE_MINIMUM_REQUIRED_VERSION VERSION_LESS 2.8.12)
message(AUTHOR_WARNING "Your project should require at least CMake 2.8.12 to use Find${module_name}.cmake")
endif()
endmacro()
macro(ecm_find_package_parse_components module_name)
set(ecm_fppc_options SKIP_DEPENDENCY_HANDLING)
set(ecm_fppc_oneValueArgs RESULT_VAR)
set(ecm_fppc_multiValueArgs KNOWN_COMPONENTS DEFAULT_COMPONENTS)
cmake_parse_arguments(ECM_FPPC "${ecm_fppc_options}" "${ecm_fppc_oneValueArgs}" "${ecm_fppc_multiValueArgs}" ${ARGN})
if(ECM_FPPC_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Unexpected arguments to ecm_find_package_parse_components: ${ECM_FPPC_UNPARSED_ARGUMENTS}")
endif()
if(NOT ECM_FPPC_RESULT_VAR)
message(FATAL_ERROR "Missing RESULT_VAR argument to ecm_find_package_parse_components")
endif()
if(NOT ECM_FPPC_KNOWN_COMPONENTS)
message(FATAL_ERROR "Missing KNOWN_COMPONENTS argument to ecm_find_package_parse_components")
endif()
if(NOT ECM_FPPC_DEFAULT_COMPONENTS)
set(ECM_FPPC_DEFAULT_COMPONENTS ${ECM_FPPC_KNOWN_COMPONENTS})
endif()
if(${module_name}_FIND_COMPONENTS)
set(ecm_fppc_requestedComps ${${module_name}_FIND_COMPONENTS})
if(NOT ECM_FPPC_SKIP_DEPENDENCY_HANDLING)
# Make sure deps are included
foreach(ecm_fppc_comp ${ecm_fppc_requestedComps})
foreach(ecm_fppc_dep_comp ${${module_name}_${ecm_fppc_comp}_component_deps})
list(FIND ecm_fppc_requestedComps "${ecm_fppc_dep_comp}" ecm_fppc_index)
if("${ecm_fppc_index}" STREQUAL "-1")
if(NOT ${module_name}_FIND_QUIETLY)
message(STATUS "${module_name}: ${ecm_fppc_comp} requires ${${module_name}_${ecm_fppc_comp}_component_deps}")
endif()
list(APPEND ecm_fppc_requestedComps "${ecm_fppc_dep_comp}")
endif()
endforeach()
endforeach()
else()
message(STATUS "Skipping dependency handling for ${module_name}")
endif()
list(REMOVE_DUPLICATES ecm_fppc_requestedComps)
# This makes sure components are listed in the same order as
# KNOWN_COMPONENTS (potentially important for inter-dependencies)
set(${ECM_FPPC_RESULT_VAR})
foreach(ecm_fppc_comp ${ECM_FPPC_KNOWN_COMPONENTS})
list(FIND ecm_fppc_requestedComps "${ecm_fppc_comp}" ecm_fppc_index)
if(NOT "${ecm_fppc_index}" STREQUAL "-1")
list(APPEND ${ECM_FPPC_RESULT_VAR} "${ecm_fppc_comp}")
list(REMOVE_AT ecm_fppc_requestedComps ${ecm_fppc_index})
endif()
endforeach()
# if there are any left, they are unknown components
if(ecm_fppc_requestedComps)
set(ecm_fppc_msgType STATUS)
if(${module_name}_FIND_REQUIRED)
set(ecm_fppc_msgType FATAL_ERROR)
endif()
if(NOT ${module_name}_FIND_QUIETLY)
message(${ecm_fppc_msgType} "${module_name}: requested unknown components ${ecm_fppc_requestedComps}")
endif()
return()
endif()
else()
set(${ECM_FPPC_RESULT_VAR} ${ECM_FPPC_DEFAULT_COMPONENTS})
endif()
endmacro()
macro(ecm_find_package_handle_library_components module_name)
set(ecm_fpwc_options SKIP_PKG_CONFIG SKIP_DEPENDENCY_HANDLING)
set(ecm_fpwc_oneValueArgs)
set(ecm_fpwc_multiValueArgs COMPONENTS)
cmake_parse_arguments(ECM_FPWC "${ecm_fpwc_options}" "${ecm_fpwc_oneValueArgs}" "${ecm_fpwc_multiValueArgs}" ${ARGN})
if(ECM_FPWC_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Unexpected arguments to ecm_find_package_handle_components: ${ECM_FPWC_UNPARSED_ARGUMENTS}")
endif()
if(NOT ECM_FPWC_COMPONENTS)
message(FATAL_ERROR "Missing COMPONENTS argument to ecm_find_package_handle_components")
endif()
include(FindPackageHandleStandardArgs)
find_package(PkgConfig QUIET)
foreach(ecm_fpwc_comp ${ECM_FPWC_COMPONENTS})
set(ecm_fpwc_dep_vars)
set(ecm_fpwc_dep_targets)
if(NOT SKIP_DEPENDENCY_HANDLING)
foreach(ecm_fpwc_dep ${${module_name}_${ecm_fpwc_comp}_component_deps})
list(APPEND ecm_fpwc_dep_vars "${module_name}_${ecm_fpwc_dep}_FOUND")
list(APPEND ecm_fpwc_dep_targets "${module_name}::${ecm_fpwc_dep}")
endforeach()
endif()
if(NOT ECM_FPWC_SKIP_PKG_CONFIG AND ${module_name}_${ecm_fpwc_comp}_pkg_config)
pkg_check_modules(PKG_${module_name}_${ecm_fpwc_comp} QUIET
${${module_name}_${ecm_fpwc_comp}_pkg_config})
endif()
find_path(${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR
NAMES ${${module_name}_${ecm_fpwc_comp}_header}
HINTS ${PKG_${module_name}_${ecm_fpwc_comp}_INCLUDE_DIRS}
PATH_SUFFIXES ${${module_name}_${ecm_fpwc_comp}_header_subdir}
)
find_library(${module_name}_${ecm_fpwc_comp}_LIBRARY
NAMES ${${module_name}_${ecm_fpwc_comp}_lib}
HINTS ${PKG_${module_name}_${ecm_fpwc_comp}_LIBRARY_DIRS}
)
set(${module_name}_${ecm_fpwc_comp}_VERSION "${PKG_${module_name}_${ecm_fpwc_comp}_VERSION}")
if(NOT ${module_name}_VERSION)
set(${module_name}_VERSION ${${module_name}_${ecm_fpwc_comp}_VERSION})
endif()
set(_name_mismatched_arg)
if(NOT CMAKE_VERSION VERSION_LESS 3.17)
set(_name_mismatched_arg NAME_MISMATCHED)
endif()
find_package_handle_standard_args(${module_name}_${ecm_fpwc_comp}
FOUND_VAR
${module_name}_${ecm_fpwc_comp}_FOUND
REQUIRED_VARS
${module_name}_${ecm_fpwc_comp}_LIBRARY
${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR
${ecm_fpwc_dep_vars}
VERSION_VAR
${module_name}_${ecm_fpwc_comp}_VERSION
${_name_mismatched_arg}
)
mark_as_advanced(
${module_name}_${ecm_fpwc_comp}_LIBRARY
${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR
)
if(${module_name}_${ecm_fpwc_comp}_FOUND)
list(APPEND ${module_name}_LIBRARIES
"${${module_name}_${ecm_fpwc_comp}_LIBRARY}")
list(APPEND ${module_name}_INCLUDE_DIRS
"${${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR}")
set(${module_name}_DEFINITIONS
${${module_name}_DEFINITIONS}
${PKG_${module_name}_${ecm_fpwc_comp}_DEFINITIONS})
if(NOT TARGET ${module_name}::${ecm_fpwc_comp})
add_library(${module_name}::${ecm_fpwc_comp} UNKNOWN IMPORTED)
set_target_properties(${module_name}::${ecm_fpwc_comp} PROPERTIES
IMPORTED_LOCATION "${${module_name}_${ecm_fpwc_comp}_LIBRARY}"
INTERFACE_COMPILE_OPTIONS "${PKG_${module_name}_${ecm_fpwc_comp}_DEFINITIONS}"
INTERFACE_INCLUDE_DIRECTORIES "${${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR}"
INTERFACE_LINK_LIBRARIES "${ecm_fpwc_dep_targets}"
)
endif()
list(APPEND ${module_name}_TARGETS
"${module_name}::${ecm_fpwc_comp}")
endif()
endforeach()
if(${module_name}_LIBRARIES)
list(REMOVE_DUPLICATES ${module_name}_LIBRARIES)
endif()
if(${module_name}_INCLUDE_DIRS)
list(REMOVE_DUPLICATES ${module_name}_INCLUDE_DIRS)
endif()
if(${module_name}_DEFINITIONS)
list(REMOVE_DUPLICATES ${module_name}_DEFINITIONS)
endif()
if(${module_name}_TARGETS)
list(REMOVE_DUPLICATES ${module_name}_TARGETS)
endif()
endmacro()
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