diff options
Diffstat (limited to 'share/cmake-3.17/Modules/FindPkgConfig.cmake')
| -rw-r--r-- | share/cmake-3.17/Modules/FindPkgConfig.cmake | 778 |
1 files changed, 0 insertions, 778 deletions
diff --git a/share/cmake-3.17/Modules/FindPkgConfig.cmake b/share/cmake-3.17/Modules/FindPkgConfig.cmake deleted file mode 100644 index c79f20f..0000000 --- a/share/cmake-3.17/Modules/FindPkgConfig.cmake +++ /dev/null @@ -1,778 +0,0 @@ -# Distributed under the OSI-approved BSD 3-Clause License. See accompanying -# file Copyright.txt or https://cmake.org/licensing for details. - -#[========================================[.rst: -FindPkgConfig -------------- - -A ``pkg-config`` module for CMake. - -Finds the ``pkg-config`` executable and adds the :command:`pkg_get_variable`, -:command:`pkg_check_modules` and :command:`pkg_search_module` commands. The -following variables will also be set: - -``PKG_CONFIG_FOUND`` - if pkg-config executable was found -``PKG_CONFIG_EXECUTABLE`` - pathname of the pkg-config program -``PKG_CONFIG_VERSION_STRING`` - version of pkg-config (since CMake 2.8.8) - -#]========================================] - -cmake_policy(PUSH) -cmake_policy(SET CMP0054 NEW) # if() quoted variables not dereferenced -cmake_policy(SET CMP0057 NEW) # if IN_LIST - -### Common stuff #### -set(PKG_CONFIG_VERSION 1) - -# find pkg-config, use PKG_CONFIG if set -if((NOT PKG_CONFIG_EXECUTABLE) AND (NOT "$ENV{PKG_CONFIG}" STREQUAL "")) - set(PKG_CONFIG_EXECUTABLE "$ENV{PKG_CONFIG}" CACHE FILEPATH "pkg-config executable") -endif() -find_program(PKG_CONFIG_EXECUTABLE NAMES pkg-config DOC "pkg-config executable") -mark_as_advanced(PKG_CONFIG_EXECUTABLE) - -if (PKG_CONFIG_EXECUTABLE) - execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} --version - OUTPUT_VARIABLE PKG_CONFIG_VERSION_STRING - ERROR_QUIET - OUTPUT_STRIP_TRAILING_WHITESPACE) -endif () - -include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) -find_package_handle_standard_args(PkgConfig - REQUIRED_VARS PKG_CONFIG_EXECUTABLE - VERSION_VAR PKG_CONFIG_VERSION_STRING) - -# This is needed because the module name is "PkgConfig" but the name of -# this variable has always been PKG_CONFIG_FOUND so this isn't automatically -# handled by FPHSA. -set(PKG_CONFIG_FOUND "${PKGCONFIG_FOUND}") - -# Unsets the given variables -macro(_pkgconfig_unset var) - set(${var} "" CACHE INTERNAL "") -endmacro() - -macro(_pkgconfig_set var value) - set(${var} ${value} CACHE INTERNAL "") -endmacro() - -# Invokes pkgconfig, cleans up the result and sets variables -macro(_pkgconfig_invoke _pkglist _prefix _varname _regexp) - set(_pkgconfig_invoke_result) - - execute_process( - COMMAND ${PKG_CONFIG_EXECUTABLE} ${ARGN} ${_pkglist} - OUTPUT_VARIABLE _pkgconfig_invoke_result - RESULT_VARIABLE _pkgconfig_failed - OUTPUT_STRIP_TRAILING_WHITESPACE) - - if (_pkgconfig_failed) - set(_pkgconfig_${_varname} "") - _pkgconfig_unset(${_prefix}_${_varname}) - else() - string(REGEX REPLACE "[\r\n]" " " _pkgconfig_invoke_result "${_pkgconfig_invoke_result}") - - if (NOT ${_regexp} STREQUAL "") - string(REGEX REPLACE "${_regexp}" " " _pkgconfig_invoke_result "${_pkgconfig_invoke_result}") - endif() - - separate_arguments(_pkgconfig_invoke_result) - - #message(STATUS " ${_varname} ... ${_pkgconfig_invoke_result}") - set(_pkgconfig_${_varname} ${_pkgconfig_invoke_result}) - _pkgconfig_set(${_prefix}_${_varname} "${_pkgconfig_invoke_result}") - endif() -endmacro() - -# Internal version of pkg_get_variable; expects PKG_CONFIG_PATH to already be set -function (_pkg_get_variable result pkg variable) - _pkgconfig_invoke("${pkg}" "prefix" "result" "" "--variable=${variable}") - set("${result}" - "${prefix_result}" - PARENT_SCOPE) -endfunction () - -# Invokes pkgconfig two times; once without '--static' and once with -# '--static' -macro(_pkgconfig_invoke_dyn _pkglist _prefix _varname cleanup_regexp) - _pkgconfig_invoke("${_pkglist}" ${_prefix} ${_varname} "${cleanup_regexp}" ${ARGN}) - _pkgconfig_invoke("${_pkglist}" ${_prefix} STATIC_${_varname} "${cleanup_regexp}" --static ${ARGN}) -endmacro() - -# Splits given arguments into options and a package list -macro(_pkgconfig_parse_options _result _is_req _is_silent _no_cmake_path _no_cmake_environment_path _imp_target _imp_target_global) - set(${_is_req} 0) - set(${_is_silent} 0) - set(${_no_cmake_path} 0) - set(${_no_cmake_environment_path} 0) - set(${_imp_target} 0) - set(${_imp_target_global} 0) - if(DEFINED PKG_CONFIG_USE_CMAKE_PREFIX_PATH) - if(NOT PKG_CONFIG_USE_CMAKE_PREFIX_PATH) - set(${_no_cmake_path} 1) - set(${_no_cmake_environment_path} 1) - endif() - elseif(CMAKE_MINIMUM_REQUIRED_VERSION VERSION_LESS 3.1) - set(${_no_cmake_path} 1) - set(${_no_cmake_environment_path} 1) - endif() - - foreach(_pkg ${ARGN}) - if (_pkg STREQUAL "REQUIRED") - set(${_is_req} 1) - endif () - if (_pkg STREQUAL "QUIET") - set(${_is_silent} 1) - endif () - if (_pkg STREQUAL "NO_CMAKE_PATH") - set(${_no_cmake_path} 1) - endif() - if (_pkg STREQUAL "NO_CMAKE_ENVIRONMENT_PATH") - set(${_no_cmake_environment_path} 1) - endif() - if (_pkg STREQUAL "IMPORTED_TARGET") - set(${_imp_target} 1) - endif() - if (_pkg STREQUAL "GLOBAL") - set(${_imp_target_global} 1) - endif() - endforeach() - - if (${_imp_target_global} AND NOT ${_imp_target}) - message(SEND_ERROR "the argument GLOBAL may only be used together with IMPORTED_TARGET") - endif() - - set(${_result} ${ARGN}) - list(REMOVE_ITEM ${_result} "REQUIRED") - list(REMOVE_ITEM ${_result} "QUIET") - list(REMOVE_ITEM ${_result} "NO_CMAKE_PATH") - list(REMOVE_ITEM ${_result} "NO_CMAKE_ENVIRONMENT_PATH") - list(REMOVE_ITEM ${_result} "IMPORTED_TARGET") - list(REMOVE_ITEM ${_result} "GLOBAL") -endmacro() - -# Add the content of a variable or an environment variable to a list of -# paths -# Usage: -# - _pkgconfig_add_extra_path(_extra_paths VAR) -# - _pkgconfig_add_extra_path(_extra_paths ENV VAR) -function(_pkgconfig_add_extra_path _extra_paths_var _var) - set(_is_env 0) - if(ARGC GREATER 2 AND _var STREQUAL "ENV") - set(_var ${ARGV2}) - set(_is_env 1) - endif() - if(NOT _is_env) - if(NOT "${${_var}}" STREQUAL "") - list(APPEND ${_extra_paths_var} ${${_var}}) - endif() - else() - if(NOT "$ENV{${_var}}" STREQUAL "") - file(TO_CMAKE_PATH "$ENV{${_var}}" _path) - list(APPEND ${_extra_paths_var} ${_path}) - unset(_path) - endif() - endif() - set(${_extra_paths_var} ${${_extra_paths_var}} PARENT_SCOPE) -endfunction() - -# scan the LDFLAGS returned by pkg-config for library directories and -# libraries, figure out the absolute paths of that libraries in the -# given directories -function(_pkg_find_libs _prefix _no_cmake_path _no_cmake_environment_path) - unset(_libs) - unset(_find_opts) - - # set the options that are used as long as the .pc file does not provide a library - # path to look into - if(_no_cmake_path) - list(APPEND _find_opts "NO_CMAKE_PATH") - endif() - if(_no_cmake_environment_path) - list(APPEND _find_opts "NO_CMAKE_ENVIRONMENT_PATH") - endif() - - unset(_search_paths) - foreach (flag IN LISTS ${_prefix}_LDFLAGS) - if (flag MATCHES "^-L(.*)") - list(APPEND _search_paths ${CMAKE_MATCH_1}) - continue() - endif() - if (flag MATCHES "^-l(.*)") - set(_pkg_search "${CMAKE_MATCH_1}") - else() - continue() - endif() - - if(_search_paths) - # Firstly search in -L paths - find_library(pkgcfg_lib_${_prefix}_${_pkg_search} - NAMES ${_pkg_search} - HINTS ${_search_paths} NO_DEFAULT_PATH) - endif() - find_library(pkgcfg_lib_${_prefix}_${_pkg_search} - NAMES ${_pkg_search} - ${_find_opts}) - mark_as_advanced(pkgcfg_lib_${_prefix}_${_pkg_search}) - if(pkgcfg_lib_${_prefix}_${_pkg_search}) - list(APPEND _libs "${pkgcfg_lib_${_prefix}_${_pkg_search}}") - else() - list(APPEND _libs ${_pkg_search}) - endif() - endforeach() - - set(${_prefix}_LINK_LIBRARIES "${_libs}" PARENT_SCOPE) -endfunction() - -# create an imported target from all the information returned by pkg-config -function(_pkg_create_imp_target _prefix _imp_target_global) - # only create the target if it is linkable, i.e. no executables - if (NOT TARGET PkgConfig::${_prefix} - AND ( ${_prefix}_INCLUDE_DIRS OR ${_prefix}_LINK_LIBRARIES OR ${_prefix}_LDFLAGS_OTHER OR ${_prefix}_CFLAGS_OTHER )) - if(${_imp_target_global}) - set(_global_opt "GLOBAL") - else() - unset(_global_opt) - endif() - add_library(PkgConfig::${_prefix} INTERFACE IMPORTED ${_global_opt}) - - if(${_prefix}_INCLUDE_DIRS) - set_property(TARGET PkgConfig::${_prefix} PROPERTY - INTERFACE_INCLUDE_DIRECTORIES "${${_prefix}_INCLUDE_DIRS}") - endif() - if(${_prefix}_LINK_LIBRARIES) - set_property(TARGET PkgConfig::${_prefix} PROPERTY - INTERFACE_LINK_LIBRARIES "${${_prefix}_LINK_LIBRARIES}") - endif() - if(${_prefix}_LDFLAGS_OTHER) - set_property(TARGET PkgConfig::${_prefix} PROPERTY - INTERFACE_LINK_OPTIONS "${${_prefix}_LDFLAGS_OTHER}") - endif() - if(${_prefix}_CFLAGS_OTHER) - set_property(TARGET PkgConfig::${_prefix} PROPERTY - INTERFACE_COMPILE_OPTIONS "${${_prefix}_CFLAGS_OTHER}") - endif() - endif() -endfunction() - -# recalculate the dynamic output -# this is a macro and not a function so the result of _pkg_find_libs is automatically propagated -macro(_pkg_recalculate _prefix _no_cmake_path _no_cmake_environment_path _imp_target _imp_target_global) - _pkg_find_libs(${_prefix} ${_no_cmake_path} ${_no_cmake_environment_path}) - if(${_imp_target}) - _pkg_create_imp_target(${_prefix} ${_imp_target_global}) - endif() -endmacro() - -### -macro(_pkg_set_path_internal) - set(_extra_paths) - - if(NOT _no_cmake_path) - _pkgconfig_add_extra_path(_extra_paths CMAKE_PREFIX_PATH) - _pkgconfig_add_extra_path(_extra_paths CMAKE_FRAMEWORK_PATH) - _pkgconfig_add_extra_path(_extra_paths CMAKE_APPBUNDLE_PATH) - endif() - - if(NOT _no_cmake_environment_path) - _pkgconfig_add_extra_path(_extra_paths ENV CMAKE_PREFIX_PATH) - _pkgconfig_add_extra_path(_extra_paths ENV CMAKE_FRAMEWORK_PATH) - _pkgconfig_add_extra_path(_extra_paths ENV CMAKE_APPBUNDLE_PATH) - endif() - - if(NOT _extra_paths STREQUAL "") - # Save the PKG_CONFIG_PATH environment variable, and add paths - # from the CMAKE_PREFIX_PATH variables - set(_pkgconfig_path_old "$ENV{PKG_CONFIG_PATH}") - set(_pkgconfig_path "${_pkgconfig_path_old}") - if(NOT _pkgconfig_path STREQUAL "") - file(TO_CMAKE_PATH "${_pkgconfig_path}" _pkgconfig_path) - endif() - - # Create a list of the possible pkgconfig subfolder (depending on - # the system - set(_lib_dirs) - if(NOT DEFINED CMAKE_SYSTEM_NAME - OR (CMAKE_SYSTEM_NAME MATCHES "^(Linux|kFreeBSD|GNU)$" - AND NOT CMAKE_CROSSCOMPILING)) - if(EXISTS "/etc/debian_version") # is this a debian system ? - if(CMAKE_LIBRARY_ARCHITECTURE) - list(APPEND _lib_dirs "lib/${CMAKE_LIBRARY_ARCHITECTURE}/pkgconfig") - endif() - else() - # not debian, check the FIND_LIBRARY_USE_LIB32_PATHS and FIND_LIBRARY_USE_LIB64_PATHS properties - get_property(uselib32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS) - if(uselib32 AND CMAKE_SIZEOF_VOID_P EQUAL 4) - list(APPEND _lib_dirs "lib32/pkgconfig") - endif() - get_property(uselib64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS) - if(uselib64 AND CMAKE_SIZEOF_VOID_P EQUAL 8) - list(APPEND _lib_dirs "lib64/pkgconfig") - endif() - get_property(uselibx32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIBX32_PATHS) - if(uselibx32 AND CMAKE_INTERNAL_PLATFORM_ABI STREQUAL "ELF X32") - list(APPEND _lib_dirs "libx32/pkgconfig") - endif() - endif() - endif() - if(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" AND NOT CMAKE_CROSSCOMPILING) - list(APPEND _lib_dirs "libdata/pkgconfig") - endif() - list(APPEND _lib_dirs "lib/pkgconfig") - list(APPEND _lib_dirs "share/pkgconfig") - - # Check if directories exist and eventually append them to the - # pkgconfig path list - foreach(_prefix_dir ${_extra_paths}) - foreach(_lib_dir ${_lib_dirs}) - if(EXISTS "${_prefix_dir}/${_lib_dir}") - list(APPEND _pkgconfig_path "${_prefix_dir}/${_lib_dir}") - list(REMOVE_DUPLICATES _pkgconfig_path) - endif() - endforeach() - endforeach() - - # Prepare and set the environment variable - if(NOT _pkgconfig_path STREQUAL "") - # remove empty values from the list - list(REMOVE_ITEM _pkgconfig_path "") - file(TO_NATIVE_PATH "${_pkgconfig_path}" _pkgconfig_path) - if(CMAKE_HOST_UNIX) - string(REPLACE ";" ":" _pkgconfig_path "${_pkgconfig_path}") - string(REPLACE "\\ " " " _pkgconfig_path "${_pkgconfig_path}") - endif() - set(ENV{PKG_CONFIG_PATH} "${_pkgconfig_path}") - endif() - - # Unset variables - unset(_lib_dirs) - unset(_pkgconfig_path) - endif() -endmacro() - -macro(_pkg_restore_path_internal) - if(NOT _extra_paths STREQUAL "") - # Restore the environment variable - set(ENV{PKG_CONFIG_PATH} "${_pkgconfig_path_old}") - endif() - - unset(_extra_paths) - unset(_pkgconfig_path_old) -endmacro() - -### -macro(_pkg_check_modules_internal _is_required _is_silent _no_cmake_path _no_cmake_environment_path _imp_target _imp_target_global _prefix) - _pkgconfig_unset(${_prefix}_FOUND) - _pkgconfig_unset(${_prefix}_VERSION) - _pkgconfig_unset(${_prefix}_PREFIX) - _pkgconfig_unset(${_prefix}_INCLUDEDIR) - _pkgconfig_unset(${_prefix}_LIBDIR) - _pkgconfig_unset(${_prefix}_MODULE_NAME) - _pkgconfig_unset(${_prefix}_LIBS) - _pkgconfig_unset(${_prefix}_LIBS_L) - _pkgconfig_unset(${_prefix}_LIBS_PATHS) - _pkgconfig_unset(${_prefix}_LIBS_OTHER) - _pkgconfig_unset(${_prefix}_CFLAGS) - _pkgconfig_unset(${_prefix}_CFLAGS_I) - _pkgconfig_unset(${_prefix}_CFLAGS_OTHER) - _pkgconfig_unset(${_prefix}_STATIC_LIBDIR) - _pkgconfig_unset(${_prefix}_STATIC_LIBS) - _pkgconfig_unset(${_prefix}_STATIC_LIBS_L) - _pkgconfig_unset(${_prefix}_STATIC_LIBS_PATHS) - _pkgconfig_unset(${_prefix}_STATIC_LIBS_OTHER) - _pkgconfig_unset(${_prefix}_STATIC_CFLAGS) - _pkgconfig_unset(${_prefix}_STATIC_CFLAGS_I) - _pkgconfig_unset(${_prefix}_STATIC_CFLAGS_OTHER) - - # create a better addressable variable of the modules and calculate its size - set(_pkg_check_modules_list ${ARGN}) - list(LENGTH _pkg_check_modules_list _pkg_check_modules_cnt) - - if(PKG_CONFIG_EXECUTABLE) - # give out status message telling checked module - if (NOT ${_is_silent}) - if (_pkg_check_modules_cnt EQUAL 1) - message(STATUS "Checking for module '${_pkg_check_modules_list}'") - else() - message(STATUS "Checking for modules '${_pkg_check_modules_list}'") - endif() - endif() - - set(_pkg_check_modules_packages) - set(_pkg_check_modules_failed) - - _pkg_set_path_internal() - - # iterate through module list and check whether they exist and match the required version - foreach (_pkg_check_modules_pkg ${_pkg_check_modules_list}) - set(_pkg_check_modules_exist_query) - - # check whether version is given - if (_pkg_check_modules_pkg MATCHES "(.*[^><])(=|[><]=?)(.*)") - set(_pkg_check_modules_pkg_name "${CMAKE_MATCH_1}") - set(_pkg_check_modules_pkg_op "${CMAKE_MATCH_2}") - set(_pkg_check_modules_pkg_ver "${CMAKE_MATCH_3}") - else() - set(_pkg_check_modules_pkg_name "${_pkg_check_modules_pkg}") - set(_pkg_check_modules_pkg_op) - set(_pkg_check_modules_pkg_ver) - endif() - - _pkgconfig_unset(${_prefix}_${_pkg_check_modules_pkg_name}_VERSION) - _pkgconfig_unset(${_prefix}_${_pkg_check_modules_pkg_name}_PREFIX) - _pkgconfig_unset(${_prefix}_${_pkg_check_modules_pkg_name}_INCLUDEDIR) - _pkgconfig_unset(${_prefix}_${_pkg_check_modules_pkg_name}_LIBDIR) - - list(APPEND _pkg_check_modules_packages "${_pkg_check_modules_pkg_name}") - - # create the final query which is of the format: - # * <pkg-name> > <version> - # * <pkg-name> >= <version> - # * <pkg-name> = <version> - # * <pkg-name> <= <version> - # * <pkg-name> < <version> - # * --exists <pkg-name> - list(APPEND _pkg_check_modules_exist_query --print-errors --short-errors) - if (_pkg_check_modules_pkg_op) - list(APPEND _pkg_check_modules_exist_query "${_pkg_check_modules_pkg_name} ${_pkg_check_modules_pkg_op} ${_pkg_check_modules_pkg_ver}") - else() - list(APPEND _pkg_check_modules_exist_query --exists) - list(APPEND _pkg_check_modules_exist_query "${_pkg_check_modules_pkg_name}") - endif() - - # execute the query - execute_process( - COMMAND ${PKG_CONFIG_EXECUTABLE} ${_pkg_check_modules_exist_query} - RESULT_VARIABLE _pkgconfig_retval - ERROR_VARIABLE _pkgconfig_error - ERROR_STRIP_TRAILING_WHITESPACE) - - # evaluate result and tell failures - if (_pkgconfig_retval) - if(NOT ${_is_silent}) - message(STATUS " ${_pkgconfig_error}") - endif() - - set(_pkg_check_modules_failed 1) - endif() - endforeach() - - if(_pkg_check_modules_failed) - # fail when requested - if (${_is_required}) - message(FATAL_ERROR "A required package was not found") - endif () - else() - # when we are here, we checked whether requested modules - # exist. Now, go through them and set variables - - _pkgconfig_set(${_prefix}_FOUND 1) - list(LENGTH _pkg_check_modules_packages pkg_count) - - # iterate through all modules again and set individual variables - foreach (_pkg_check_modules_pkg ${_pkg_check_modules_packages}) - # handle case when there is only one package required - if (pkg_count EQUAL 1) - set(_pkg_check_prefix "${_prefix}") - else() - set(_pkg_check_prefix "${_prefix}_${_pkg_check_modules_pkg}") - endif() - - _pkgconfig_invoke(${_pkg_check_modules_pkg} "${_pkg_check_prefix}" VERSION "" --modversion ) - pkg_get_variable("${_pkg_check_prefix}_PREFIX" ${_pkg_check_modules_pkg} "prefix") - pkg_get_variable("${_pkg_check_prefix}_INCLUDEDIR" ${_pkg_check_modules_pkg} "includedir") - pkg_get_variable("${_pkg_check_prefix}_LIBDIR" ${_pkg_check_modules_pkg} "libdir") - foreach (variable IN ITEMS PREFIX INCLUDEDIR LIBDIR) - _pkgconfig_set("${_pkg_check_prefix}_${variable}" "${${_pkg_check_prefix}_${variable}}") - endforeach () - _pkgconfig_set("${_pkg_check_prefix}_MODULE_NAME" "${_pkg_check_modules_pkg}") - - if (NOT ${_is_silent}) - message(STATUS " Found ${_pkg_check_modules_pkg}, version ${_pkgconfig_VERSION}") - endif () - endforeach() - - # set variables which are combined for multiple modules - _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LIBRARIES "(^| )-l" --libs-only-l ) - _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LIBRARY_DIRS "(^| )-L" --libs-only-L ) - _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LDFLAGS "" --libs ) - _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LDFLAGS_OTHER "" --libs-only-other ) - - _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" INCLUDE_DIRS "(^| )-I" --cflags-only-I ) - _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" CFLAGS "" --cflags ) - _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" CFLAGS_OTHER "" --cflags-only-other ) - - _pkg_recalculate("${_prefix}" ${_no_cmake_path} ${_no_cmake_environment_path} ${_imp_target} ${_imp_target_global}) - endif() - - _pkg_restore_path_internal() - else() - if (${_is_required}) - message(SEND_ERROR "pkg-config tool not found") - endif () - endif() -endmacro() - - -#[========================================[.rst: -.. command:: pkg_check_modules - - Checks for all the given modules, setting a variety of result variables in - the calling scope. - - .. code-block:: cmake - - pkg_check_modules(<prefix> - [REQUIRED] [QUIET] - [NO_CMAKE_PATH] - [NO_CMAKE_ENVIRONMENT_PATH] - [IMPORTED_TARGET [GLOBAL]] - <moduleSpec> [<moduleSpec>...]) - - When the ``REQUIRED`` argument is given, the command will fail with an error - if module(s) could not be found. - - When the ``QUIET`` argument is given, no status messages will be printed. - - By default, if :variable:`CMAKE_MINIMUM_REQUIRED_VERSION` is 3.1 or - later, or if :variable:`PKG_CONFIG_USE_CMAKE_PREFIX_PATH` is set to a - boolean ``True`` value, then the :variable:`CMAKE_PREFIX_PATH`, - :variable:`CMAKE_FRAMEWORK_PATH`, and :variable:`CMAKE_APPBUNDLE_PATH` cache - and environment variables will be added to the ``pkg-config`` search path. - The ``NO_CMAKE_PATH`` and ``NO_CMAKE_ENVIRONMENT_PATH`` arguments - disable this behavior for the cache variables and environment variables - respectively. - - The ``IMPORTED_TARGET`` argument will create an imported target named - ``PkgConfig::<prefix>`` that can be passed directly as an argument to - :command:`target_link_libraries`. The ``GLOBAL`` argument will make the - imported target available in global scope. - - Each ``<moduleSpec>`` can be either a bare module name or it can be a - module name with a version constraint (operators ``=``, ``<``, ``>``, - ``<=`` and ``>=`` are supported). The following are examples for a module - named ``foo`` with various constraints: - - - ``foo`` matches any version. - - ``foo<2`` only matches versions before 2. - - ``foo>=3.1`` matches any version from 3.1 or later. - - ``foo=1.2.3`` requires that foo must be exactly version 1.2.3. - - The following variables may be set upon return. Two sets of values exist: - One for the common case (``<XXX> = <prefix>``) and another for the - information ``pkg-config`` provides when called with the ``--static`` - option (``<XXX> = <prefix>_STATIC``). - - ``<XXX>_FOUND`` - set to 1 if module(s) exist - ``<XXX>_LIBRARIES`` - only the libraries (without the '-l') - ``<XXX>_LINK_LIBRARIES`` - the libraries and their absolute paths - ``<XXX>_LIBRARY_DIRS`` - the paths of the libraries (without the '-L') - ``<XXX>_LDFLAGS`` - all required linker flags - ``<XXX>_LDFLAGS_OTHER`` - all other linker flags - ``<XXX>_INCLUDE_DIRS`` - the '-I' preprocessor flags (without the '-I') - ``<XXX>_CFLAGS`` - all required cflags - ``<XXX>_CFLAGS_OTHER`` - the other compiler flags - - All but ``<XXX>_FOUND`` may be a :ref:`;-list <CMake Language Lists>` if the - associated variable returned from ``pkg-config`` has multiple values. - - There are some special variables whose prefix depends on the number of - ``<moduleSpec>`` given. When there is only one ``<moduleSpec>``, - ``<YYY>`` will simply be ``<prefix>``, but if two or more ``<moduleSpec>`` - items are given, ``<YYY>`` will be ``<prefix>_<moduleName>``. - - ``<YYY>_VERSION`` - version of the module - ``<YYY>_PREFIX`` - prefix directory of the module - ``<YYY>_INCLUDEDIR`` - include directory of the module - ``<YYY>_LIBDIR`` - lib directory of the module - - Examples: - - .. code-block:: cmake - - pkg_check_modules (GLIB2 glib-2.0) - - Looks for any version of glib2. If found, the output variable - ``GLIB2_VERSION`` will hold the actual version found. - - .. code-block:: cmake - - pkg_check_modules (GLIB2 glib-2.0>=2.10) - - Looks for at least version 2.10 of glib2. If found, the output variable - ``GLIB2_VERSION`` will hold the actual version found. - - .. code-block:: cmake - - pkg_check_modules (FOO glib-2.0>=2.10 gtk+-2.0) - - Looks for both glib2-2.0 (at least version 2.10) and any version of - gtk2+-2.0. Only if both are found will ``FOO`` be considered found. - The ``FOO_glib-2.0_VERSION`` and ``FOO_gtk+-2.0_VERSION`` variables will be - set to their respective found module versions. - - .. code-block:: cmake - - pkg_check_modules (XRENDER REQUIRED xrender) - - Requires any version of ``xrender``. Example output variables set by a - successful call:: - - XRENDER_LIBRARIES=Xrender;X11 - XRENDER_STATIC_LIBRARIES=Xrender;X11;pthread;Xau;Xdmcp -#]========================================] -macro(pkg_check_modules _prefix _module0) - _pkgconfig_parse_options(_pkg_modules _pkg_is_required _pkg_is_silent _no_cmake_path _no_cmake_environment_path _imp_target _imp_target_global "${_module0}" ${ARGN}) - # check cached value - if (NOT DEFINED __pkg_config_checked_${_prefix} OR __pkg_config_checked_${_prefix} LESS ${PKG_CONFIG_VERSION} OR NOT ${_prefix}_FOUND OR - (NOT "${ARGN}" STREQUAL "" AND NOT "${__pkg_config_arguments_${_prefix}}" STREQUAL "${_module0};${ARGN}") OR - ( "${ARGN}" STREQUAL "" AND NOT "${__pkg_config_arguments_${_prefix}}" STREQUAL "${_module0}")) - _pkg_check_modules_internal("${_pkg_is_required}" "${_pkg_is_silent}" ${_no_cmake_path} ${_no_cmake_environment_path} ${_imp_target} ${_imp_target_global} "${_prefix}" ${_pkg_modules}) - - _pkgconfig_set(__pkg_config_checked_${_prefix} ${PKG_CONFIG_VERSION}) - if (${_prefix}_FOUND) - _pkgconfig_set(__pkg_config_arguments_${_prefix} "${_module0};${ARGN}") - endif() - else() - if (${_prefix}_FOUND) - _pkg_recalculate("${_prefix}" ${_no_cmake_path} ${_no_cmake_environment_path} ${_imp_target} ${_imp_target_global}) - endif() - endif() -endmacro() - - -#[========================================[.rst: -.. command:: pkg_search_module - - The behavior of this command is the same as :command:`pkg_check_modules`, - except that rather than checking for all the specified modules, it searches - for just the first successful match. - - .. code-block:: cmake - - pkg_search_module(<prefix> - [REQUIRED] [QUIET] - [NO_CMAKE_PATH] - [NO_CMAKE_ENVIRONMENT_PATH] - [IMPORTED_TARGET [GLOBAL]] - <moduleSpec> [<moduleSpec>...]) - - If a module is found, the ``<prefix>_MODULE_NAME`` variable will contain the - name of the matching module. This variable can be used if you need to run - :command:`pkg_get_variable`. - - Example: - - .. code-block:: cmake - - pkg_search_module (BAR libxml-2.0 libxml2 libxml>=2) -#]========================================] -macro(pkg_search_module _prefix _module0) - _pkgconfig_parse_options(_pkg_modules_alt _pkg_is_required _pkg_is_silent _no_cmake_path _no_cmake_environment_path _imp_target _imp_target_global "${_module0}" ${ARGN}) - # check cached value - if (NOT DEFINED __pkg_config_checked_${_prefix} OR __pkg_config_checked_${_prefix} LESS ${PKG_CONFIG_VERSION} OR NOT ${_prefix}_FOUND) - set(_pkg_modules_found 0) - - if (NOT ${_pkg_is_silent}) - message(STATUS "Checking for one of the modules '${_pkg_modules_alt}'") - endif () - - # iterate through all modules and stop at the first working one. - foreach(_pkg_alt ${_pkg_modules_alt}) - if(NOT _pkg_modules_found) - _pkg_check_modules_internal(0 1 ${_no_cmake_path} ${_no_cmake_environment_path} ${_imp_target} ${_imp_target_global} "${_prefix}" "${_pkg_alt}") - endif() - - if (${_prefix}_FOUND) - set(_pkg_modules_found 1) - break() - endif() - endforeach() - - if (NOT ${_prefix}_FOUND) - if(${_pkg_is_required}) - message(SEND_ERROR "None of the required '${_pkg_modules_alt}' found") - endif() - endif() - - _pkgconfig_set(__pkg_config_checked_${_prefix} ${PKG_CONFIG_VERSION}) - elseif (${_prefix}_FOUND) - _pkg_recalculate("${_prefix}" ${_no_cmake_path} ${_no_cmake_environment_path} ${_imp_target} ${_imp_target_global}) - endif() -endmacro() - -#[========================================[.rst: -.. command:: pkg_get_variable - - Retrieves the value of a pkg-config variable ``varName`` and stores it in the - result variable ``resultVar`` in the calling scope. - - .. code-block:: cmake - - pkg_get_variable(<resultVar> <moduleName> <varName>) - - If ``pkg-config`` returns multiple values for the specified variable, - ``resultVar`` will contain a :ref:`;-list <CMake Language Lists>`. - - For example: - - .. code-block:: cmake - - pkg_get_variable(GI_GIRDIR gobject-introspection-1.0 girdir) -#]========================================] -function (pkg_get_variable result pkg variable) - _pkg_set_path_internal() - _pkgconfig_invoke("${pkg}" "prefix" "result" "" "--variable=${variable}") - set("${result}" - "${prefix_result}" - PARENT_SCOPE) - _pkg_restore_path_internal() -endfunction () - - -#[========================================[.rst: -Variables Affecting Behavior -^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -.. variable:: PKG_CONFIG_EXECUTABLE - - This can be set to the path of the pkg-config executable. If not provided, - it will be set by the module as a result of calling :command:`find_program` - internally. The ``PKG_CONFIG`` environment variable can be used as a hint. - -.. variable:: PKG_CONFIG_USE_CMAKE_PREFIX_PATH - - Specifies whether :command:`pkg_check_modules` and - :command:`pkg_search_module` should add the paths in the - :variable:`CMAKE_PREFIX_PATH`, :variable:`CMAKE_FRAMEWORK_PATH` and - :variable:`CMAKE_APPBUNDLE_PATH` cache and environment variables to the - ``pkg-config`` search path. - - If this variable is not set, this behavior is enabled by default if - :variable:`CMAKE_MINIMUM_REQUIRED_VERSION` is 3.1 or later, disabled - otherwise. -#]========================================] - - -### Local Variables: -### mode: cmake -### End: - -cmake_policy(POP) |