tensorflow/tensorflow/lite/tools/cmake/modules/flatbuffers.cmake
Fergus Henderson 6f3bab216d Update from flatbuffers 25.2.10 to 25.9.23.
PiperOrigin-RevId: 813955553
2025-10-01 16:25:25 -07:00

80 lines
2.6 KiB
CMake

#
# Copyright 2020 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
if(TARGET flatbuffers OR flatbuffers_POPULATED)
return()
endif()
include(OverridableFetchContent)
OverridableFetchContent_Declare(
flatbuffers
GIT_REPOSITORY https://github.com/google/flatbuffers
# Keep in sync with tensorflow/third_party/flatbuffers/workspace.bzl
GIT_TAG v25.9.23
# NOTE: b/340264458 - `GIT_SHALLOW TRUE` works for tag name only.
GIT_SHALLOW FALSE
GIT_PROGRESS TRUE
SOURCE_DIR "${CMAKE_BINARY_DIR}/flatbuffers"
)
OverridableFetchContent_GetProperties(flatbuffers)
if(NOT flatbuffers_POPULATED)
OverridableFetchContent_Populate(flatbuffers)
endif()
option(FLATBUFFERS_BUILD_TESTS OFF)
# Required for Windows, since it has macros called min & max which
# clashes with std::min
add_definitions(-DNOMINMAX=1)
add_subdirectory(
"${flatbuffers_SOURCE_DIR}"
"${flatbuffers_BINARY_DIR}"
)
remove_definitions(-DNOMINMAX)
# For BuildFlatBuffers.cmake
set(CMAKE_MODULE_PATH
"${flatbuffers_SOURCE_DIR}/CMake"
${CMAKE_MODULE_PATH}
)
# The host-side flatc binary
include(ExternalProject)
# For native flatc build purposes the flatc needs to be included in 'all' target
if(NOT DEFINED FLATC_EXCLUDE_FROM_ALL)
set(FLATC_EXCLUDE_FROM_ALL TRUE)
endif()
# In case of a standalone (native) build of flatc for unit test cross-compilation
# purposes the FLATC_INSTALL_PREFIX is already in cache and is just used in this module.
# In case of standard flatbuffers build (as a dependency) the variable needs to be set.
if(NOT DEFINED FLATC_INSTALL_PREFIX)
set(FLATC_INSTALL_PREFIX <INSTALL_DIR> CACHE PATH "Flatc installation directory")
endif()
ExternalProject_Add(flatbuffers-flatc
PREFIX ${CMAKE_BINARY_DIR}/flatbuffers-flatc
SOURCE_DIR ${flatbuffers_SOURCE_DIR}
CMAKE_ARGS -DCMAKE_CXX_FLAGS="-DNOMINMAX=1"
-DFLATBUFFERS_BUILD_TESTS=OFF
-DFLATBUFFERS_BUILD_FLATLIB=OFF
-DFLATBUFFERS_STATIC_FLATC=OFF
-DFLATBUFFERS_BUILD_FLATHASH=OFF
-DCMAKE_INSTALL_PREFIX=$CACHE{FLATC_INSTALL_PREFIX}
EXCLUDE_FROM_ALL ${FLATC_EXCLUDE_FROM_ALL}
)