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pkg_get_variable now sets PKG_CONFIG_PATH like pkg_check_modules

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Fixes: #15805
This commit is contained in:
Dan Kegel 2017-12-07 10:00:39 -08:00 committed by Ben Boeckel
parent 4d76941924
commit f401a57160
2 changed files with 35 additions and 26 deletions
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58
Modules/FindPkgConfig.cmake
View File

@ -84,26 +84,8 @@ macro(_pkgconfig_invoke _pkglist _prefix _varname _regexp)
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)
# 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}"
@ -294,12 +276,12 @@ macro(_pkg_set_path_internal)
_pkgconfig_add_extra_path(_extra_paths ENV CMAKE_APPBUNDLE_PATH)
endif()
if(NOT "${_extra_paths}" STREQUAL "")
if(NOT _extra_paths STREQUAL "")
# Save the PKG_CONFIG_PATH environment variable, and add paths
# from the CMAKE_PREFIX_PATH variables
set(_pkgconfig_path_old "$ENV{PKG_CONFIG_PATH}")
set(_pkgconfig_path "${_pkgconfig_path_old}")
if(NOT "${_pkgconfig_path}" STREQUAL "")
if(NOT _pkgconfig_path STREQUAL "")
file(TO_CMAKE_PATH "${_pkgconfig_path}" _pkgconfig_path)
endif()
@ -347,7 +329,7 @@ macro(_pkg_set_path_internal)
endforeach()
# Prepare and set the environment variable
if(NOT "${_pkgconfig_path}" STREQUAL "")
if(NOT _pkgconfig_path STREQUAL "")
# remove empty values from the list
list(REMOVE_ITEM _pkgconfig_path "")
file(TO_NATIVE_PATH "${_pkgconfig_path}" _pkgconfig_path)
@ -365,7 +347,7 @@ macro(_pkg_set_path_internal)
endmacro()
macro(_pkg_restore_path_internal)
if(NOT "${_extra_paths}" STREQUAL "")
if(NOT _extra_paths STREQUAL "")
# Restore the environment variable
set(ENV{PKG_CONFIG_PATH} "${_pkgconfig_path_old}")
endif()
@ -721,6 +703,34 @@ macro(pkg_search_module _prefix _module0)
endif()
endmacro()
#[========================================[.rst:
.. command:: pkg_get_variable
Retrieves the value of a pkg-config variable ``varName`` and stores it in the
result variable ``resultVar`` in the calling scope.
.. code-block:: cmake
pkg_get_variable(<resultVar> <moduleName> <varName>)
If ``pkg-config`` returns multiple values for the specified variable,
``resultVar`` will contain a :ref:`;-list <CMake Language Lists>`.
For example:
.. code-block:: cmake
pkg_get_variable(GI_GIRDIR gobject-introspection-1.0 girdir)
#]========================================]
function (pkg_get_variable result pkg variable)
_pkg_set_path_internal()
_pkgconfig_invoke("${pkg}" "prefix" "result" "" "--variable=${variable}")
set("${result}"
"${prefix_result}"
PARENT_SCOPE)
_pkg_restore_path_internal()
endfunction ()
#[========================================[.rst:
Variables Affecting Behavior

3
Tests/RunCMake/FindPkgConfig/RunCMakeTest.cmake
View File

@ -14,8 +14,7 @@ endif()
find_package(PkgConfig)
if (PKG_CONFIG_FOUND)
run_cmake(FindPkgConfig_GET_VARIABLE)
# Disable this one until https://gitlab.kitware.com/cmake/cmake/issues/15805 fixed
#run_cmake(FindPkgConfig_GET_VARIABLE_PREFIX_PATH)
run_cmake(FindPkgConfig_GET_VARIABLE_PREFIX_PATH)
run_cmake(FindPkgConfig_GET_VARIABLE_PKGCONFIG_PATH)
run_cmake(FindPkgConfig_cache_variables)
run_cmake(FindPkgConfig_IMPORTED_TARGET)