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- # Copyright Louis Dionne 2013-2017
- # Distributed under the Boost Software License, Version 1.0.
- # (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
- #
- #
- # This CMake module finds the MPL11 include directory. This module sets the
- # following CMake variables:
- #
- # MPL11_FOUND
- # Set to 1 when the MPL11 include directory is found, 0 otherwise.
- #
- # MPL11_INCLUDE_DIR
- # If the MPL11 include directory is found, this is set to the path of that
- # directory. Otherwise, this is not set.
- #
- #
- # The following variables can be used to customize the behavior of the module:
- #
- # MPL11_INCLUDE_DIR
- # The path to the MPL11 include directory. When set, this will be used as-is.
- #
- # MPL11_CLONE_IF_MISSING
- # If the MPL11 include directory can't be found and this is set to true,
- # the MPL11 project will be cloned locally.
- if (NOT EXISTS "${MPL11_INCLUDE_DIR}")
- find_path(MPL11_INCLUDE_DIR NAMES boost/mpl11/mpl11.hpp
- DOC "MPL11 library header files")
- endif()
- if (NOT EXISTS "${MPL11_INCLUDE_DIR}" AND MPL11_CLONE_IF_MISSING)
- include(ExternalProject)
- ExternalProject_Add(MPL11 EXCLUDE_FROM_ALL 1
- GIT_REPOSITORY https://github.com/ldionne/mpl11
- TIMEOUT 5
- CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
- PREFIX "${CMAKE_CURRENT_BINARY_DIR}"
- BUILD_COMMAND "" # Disable build step
- INSTALL_COMMAND "" # Disable install step
- TEST_COMMAND "" # Disable test step
- )
- ExternalProject_Get_Property(MPL11 SOURCE_DIR)
- set(MPL11_INCLUDE_DIR "${SOURCE_DIR}/include")
- endif()
- include(FindPackageHandleStandardArgs)
- find_package_handle_standard_args(MPL11 DEFAULT_MSG MPL11_INCLUDE_DIR)
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