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Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/hana/cmake/FindMeta.cmake | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/boost/libs/hana/cmake/FindMeta.cmake b/src/boost/libs/hana/cmake/FindMeta.cmake new file mode 100644 index 000000000..0a532062b --- /dev/null +++ b/src/boost/libs/hana/cmake/FindMeta.cmake @@ -0,0 +1,52 @@ +# 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 file was adapted from FindMeta.cmake at https://github.com/ericniebler/meta. +# +# +# This CMake module finds the Meta include directory. This module sets the +# following CMake variables: +# +# Meta_FOUND +# Set to 1 when the Meta include directory is found, 0 otherwise. +# +# Meta_INCLUDE_DIR +# If the Meta 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: +# +# Meta_INCLUDE_DIR +# The path to the Meta include directory. When set, this will be used as-is. +# +# Meta_CLONE_IF_MISSING +# If the Meta include directory can't be found and this is set to true, +# the Meta project will be cloned locally. + +if (NOT EXISTS "${Meta_INCLUDE_DIR}") + find_path(Meta_INCLUDE_DIR NAMES meta/meta.hpp + DOC "Meta library header files") +endif() + +if (NOT EXISTS "${Meta_INCLUDE_DIR}" AND Meta_CLONE_IF_MISSING) + include(ExternalProject) + ExternalProject_Add(meta EXCLUDE_FROM_ALL 1 + GIT_REPOSITORY https://github.com/ericniebler/meta + TIMEOUT 5 + CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS} + PREFIX "${CMAKE_CURRENT_BINARY_DIR}" + BUILD_COMMAND "" # Disable build step + INSTALL_COMMAND "" # Disable install step + TEST_COMMAND "" # Disable test step + ) + + ExternalProject_Get_Property(meta SOURCE_DIR) + set(Meta_INCLUDE_DIR "${SOURCE_DIR}/include") +endif() + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(Meta + FOUND_VAR Meta_FOUND + REQUIRED_VARS Meta_INCLUDE_DIR) |