/usr/share/cmake-3.10/Modules/CMakeFindDependencyMacro.cmake is in cmake-data 3.10.2-1ubuntu2.
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# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
CMakeFindDependencyMacro
-------------------------
.. command:: find_dependency
The ``find_dependency()`` macro wraps a :command:`find_package` call for
a package dependency::
find_dependency(<dep> [...])
It is designed to be used in a
:ref:`Package Configuration File <Config File Packages>`
(``<package>Config.cmake``). ``find_dependency`` forwards the correct
parameters for ``QUIET`` and ``REQUIRED`` which were passed to
the original :command:`find_package` call. Any additional arguments
specified are forwarded to :command:`find_package`.
If the dependency could not be found it sets an informative diagnostic
message and calls :command:`return` to end processing of the calling
package configuration file and return to the :command:`find_package`
command that loaded it.
.. note::
The call to :command:`return` makes this macro unsuitable to call
from :ref:`Find Modules`.
#]=======================================================================]
macro(find_dependency dep)
if (NOT ${dep}_FOUND)
set(cmake_fd_quiet_arg)
if(${CMAKE_FIND_PACKAGE_NAME}_FIND_QUIETLY)
set(cmake_fd_quiet_arg QUIET)
endif()
set(cmake_fd_required_arg)
if(${CMAKE_FIND_PACKAGE_NAME}_FIND_REQUIRED)
set(cmake_fd_required_arg REQUIRED)
endif()
get_property(cmake_fd_alreadyTransitive GLOBAL PROPERTY
_CMAKE_${dep}_TRANSITIVE_DEPENDENCY
)
find_package(${dep} ${ARGN}
${cmake_fd_quiet_arg}
${cmake_fd_required_arg}
)
if(NOT DEFINED cmake_fd_alreadyTransitive OR cmake_fd_alreadyTransitive)
set_property(GLOBAL PROPERTY _CMAKE_${dep}_TRANSITIVE_DEPENDENCY TRUE)
endif()
if (NOT ${dep}_FOUND)
set(${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE "${CMAKE_FIND_PACKAGE_NAME} could not be found because dependency ${dep} could not be found.")
set(${CMAKE_FIND_PACKAGE_NAME}_FOUND False)
return()
endif()
set(cmake_fd_required_arg)
set(cmake_fd_quiet_arg)
set(cmake_fd_exact_arg)
endif()
endmacro()
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