diff options
Diffstat (limited to 'Modules/FindPkgConfig.cmake')
| -rw-r--r-- | Modules/FindPkgConfig.cmake | 85 |
1 files changed, 72 insertions, 13 deletions
diff --git a/Modules/FindPkgConfig.cmake b/Modules/FindPkgConfig.cmake index 01ad5ac6b..ef43a3ae9 100644 --- a/Modules/FindPkgConfig.cmake +++ b/Modules/FindPkgConfig.cmake @@ -12,11 +12,24 @@ Finds the ``pkg-config`` executable and adds the :command:`pkg_get_variable`, following variables will also be set: ``PKG_CONFIG_FOUND`` - if pkg-config executable was found -``PKG_CONFIG_EXECUTABLE`` - pathname of the pkg-config program + True if a pkg-config executable was found. + ``PKG_CONFIG_VERSION_STRING`` - version of pkg-config (since CMake 2.8.8) + .. versionadded:: 2.8.8 + + The version of pkg-config that was found. + +``PKG_CONFIG_EXECUTABLE`` + The pathname of the pkg-config program. + +``PKG_CONFIG_ARGN`` + .. versionadded:: 3.22 + + A list of arguments to pass to pkg-config. + +Both ``PKG_CONFIG_EXECUTABLE`` and ``PKG_CONFIG_ARGN`` are initialized by the +module, but may be overridden by the user. See `Variables Affecting Behavior`_ +for how these variables are initialized. #]========================================] @@ -29,13 +42,22 @@ 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") + separate_arguments(PKG_CONFIG_FROM_ENV_SPLIT NATIVE_COMMAND PROGRAM SEPARATE_ARGS "$ENV{PKG_CONFIG}") + list(LENGTH PKG_CONFIG_FROM_ENV_SPLIT PKG_CONFIG_FROM_ENV_SPLIT_ARGC) + if(PKG_CONFIG_FROM_ENV_SPLIT_ARGC GREATER 0) + list(GET PKG_CONFIG_FROM_ENV_SPLIT 0 PKG_CONFIG_FROM_ENV_ARGV0) + if(PKG_CONFIG_FROM_ENV_SPLIT_ARGC GREATER 1) + list(SUBLIST PKG_CONFIG_FROM_ENV_SPLIT 1 -1 PKG_CONFIG_ARGN) + endif() + set(PKG_CONFIG_EXECUTABLE "${PKG_CONFIG_FROM_ENV_ARGV0}" CACHE FILEPATH "pkg-config executable") + endif() endif() set(PKG_CONFIG_NAMES "pkg-config") if(CMAKE_HOST_WIN32) list(PREPEND PKG_CONFIG_NAMES "pkg-config.bat") endif() +list(PREPEND PKG_CONFIG_NAMES "pkgconf") find_program(PKG_CONFIG_EXECUTABLE NAMES ${PKG_CONFIG_NAMES} @@ -43,9 +65,12 @@ find_program(PKG_CONFIG_EXECUTABLE DOC "pkg-config executable") mark_as_advanced(PKG_CONFIG_EXECUTABLE) +set(PKG_CONFIG_ARGN "${PKG_CONFIG_ARGN}" CACHE STRING "Arguments to supply to pkg-config") +mark_as_advanced(PKG_CONFIG_ARGN) + set(_PKG_CONFIG_FAILURE_MESSAGE "") if (PKG_CONFIG_EXECUTABLE) - execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} --version + execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} ${PKG_CONFIG_ARGN} --version OUTPUT_VARIABLE PKG_CONFIG_VERSION_STRING OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_VARIABLE _PKG_CONFIG_VERSION_ERROR ERROR_STRIP_TRAILING_WHITESPACE RESULT_VARIABLE _PKG_CONFIG_VERSION_RESULT @@ -53,14 +78,18 @@ if (PKG_CONFIG_EXECUTABLE) if (NOT _PKG_CONFIG_VERSION_RESULT EQUAL 0) string(REPLACE "\n" "\n " _PKG_CONFIG_VERSION_ERROR " ${_PKG_CONFIG_VERSION_ERROR}") + if(PKG_CONFIG_ARGN) + string(REPLACE ";" " " PKG_CONFIG_ARGN " ${PKG_CONFIG_ARGN}") + endif() string(APPEND _PKG_CONFIG_FAILURE_MESSAGE "The command\n" - " \"${PKG_CONFIG_EXECUTABLE}\" --version\n" + " \"${PKG_CONFIG_EXECUTABLE}\"${PKG_CONFIG_ARGN} --version\n" " failed with output:\n${PKG_CONFIG_VERSION_STRING}\n" " stderr: \n${_PKG_CONFIG_VERSION_ERROR}\n" " result: \n${_PKG_CONFIG_VERSION_RESULT}" ) set(PKG_CONFIG_EXECUTABLE "") + set(PKG_CONFIG_ARGN "") unset(PKG_CONFIG_VERSION_STRING) endif () unset(_PKG_CONFIG_VERSION_RESULT) @@ -99,7 +128,7 @@ macro(_pkgconfig_invoke _pkglist _prefix _varname _regexp) set(_pkgconfig_invoke_result) execute_process( - COMMAND ${PKG_CONFIG_EXECUTABLE} ${ARGN} ${_pkglist} + COMMAND ${PKG_CONFIG_EXECUTABLE} ${PKG_CONFIG_ARGN} ${ARGN} ${_pkglist} OUTPUT_VARIABLE _pkgconfig_invoke_result RESULT_VARIABLE _pkgconfig_failed OUTPUT_STRIP_TRAILING_WHITESPACE) @@ -393,6 +422,14 @@ macro(_pkg_set_path_internal) unset(_lib_dirs) unset(_pkgconfig_path) endif() + + # Tell pkg-config not to strip any -L paths so we can search them all. + if(DEFINED ENV{PKG_CONFIG_ALLOW_SYSTEM_LIBS}) + set(_pkgconfig_allow_system_libs_old "$ENV{PKG_CONFIG_ALLOW_SYSTEM_LIBS}") + else() + unset(_pkgconfig_allow_system_libs_old) + endif() + set(ENV{PKG_CONFIG_ALLOW_SYSTEM_LIBS} 0) endmacro() macro(_pkg_restore_path_internal) @@ -400,6 +437,10 @@ macro(_pkg_restore_path_internal) # Restore the environment variable set(ENV{PKG_CONFIG_PATH} "${_pkgconfig_path_old}") endif() + if(DEFINED _pkgconfig_allow_system_libs_old) + set(ENV{PKG_CONFIG_ALLOW_SYSTEM_LIBS} "${_pkgconfig_allow_system_libs_old}") + unset(_pkgconfig_allow_system_libs_old) + endif() unset(_extra_paths) unset(_pkgconfig_path_old) @@ -541,7 +582,7 @@ macro(_pkg_check_modules_internal _is_required _is_silent _no_cmake_path _no_cma # execute the query execute_process( - COMMAND ${PKG_CONFIG_EXECUTABLE} ${_pkg_check_modules_exist_query} + COMMAND ${PKG_CONFIG_EXECUTABLE} ${PKG_CONFIG_ARGN} ${_pkg_check_modules_exist_query} RESULT_VARIABLE _pkgconfig_retval ERROR_VARIABLE _pkgconfig_error ERROR_STRIP_TRAILING_WHITESPACE) @@ -893,12 +934,30 @@ 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. + This cache variable can be set to the path of the pkg-config executable. + :command:`find_program` is called internally by the module with this + variable. .. versionadded:: 3.1 - The ``PKG_CONFIG`` environment variable can be used as a hint. + The ``PKG_CONFIG`` environment variable can be used as a hint if + ``PKG_CONFIG_EXECUTABLE`` has not yet been set. + + .. versionchanged:: 3.22 + If the ``PKG_CONFIG`` environment variable is set, only the first + argument is taken from it when using it as a hint. + +.. variable:: PKG_CONFIG_ARGN + + .. versionadded:: 3.22 + + This cache variable can be set to a list of arguments to additionally pass + to pkg-config if needed. If not provided, it will be initialized from the + ``PKG_CONFIG`` environment variable, if set. The first argument in that + environment variable is assumed to be the pkg-config program, while all + remaining arguments after that are used to initialize ``PKG_CONFIG_ARGN``. + If no such environment variable is defined, ``PKG_CONFIG_ARGN`` is + initialized to an empty string. The module does not update the variable once + it has been set in the cache. .. variable:: PKG_CONFIG_USE_CMAKE_PREFIX_PATH |