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# Copyright 2017 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
#
# http://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.
# ==============================================================================
include (ExternalProject)
set(PROTOBUF_INCLUDE_DIRS ${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf/src)
set(PROTOBUF_URL https://github.com/google/protobuf.git)
set(PROTOBUF_TAG 396336eb961b75f03b25824fe86cf6490fb75e3a)
if(WIN32)
if(${CMAKE_GENERATOR} MATCHES "Visual Studio.*")
set(protobuf_STATIC_LIBRARIES
debug ${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf/$(Configuration)/libprotobufd.lib
optimized ${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf/$(Configuration)/libprotobuf.lib)
set(PROTOBUF_PROTOC_EXECUTABLE ${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf/$(Configuration)/protoc.exe)
else()
if(CMAKE_BUILD_TYPE EQUAL Debug)
set(protobuf_STATIC_LIBRARIES
${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf/libprotobufd.lib)
else()
set(protobuf_STATIC_LIBRARIES
${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf/libprotobuf.lib)
endif()
set(PROTOBUF_PROTOC_EXECUTABLE ${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf/protoc.exe)
endif()
# This section is to make sure CONFIGURE_COMMAND use the same generator settings
set(PROTOBUF_GENERATOR_PLATFORM)
if (CMAKE_GENERATOR_PLATFORM)
set(PROTOBUF_GENERATOR_PLATFORM -A ${CMAKE_GENERATOR_PLATFORM})
endif()
set(PROTOBUF_GENERATOR_TOOLSET)
if (CMAKE_GENERATOR_TOOLSET)
set(PROTOBUF_GENERATOR_TOOLSET -T ${CMAKE_GENERATOR_TOOLSET})
endif()
set(PROTOBUF_ADDITIONAL_CMAKE_OPTIONS -Dprotobuf_MSVC_STATIC_RUNTIME:BOOL=OFF
-G${CMAKE_GENERATOR} ${PROTOBUF_GENERATOR_PLATFORM} ${PROTOBUF_GENERATOR_TOOLSET})
# End of section
else()
set(protobuf_STATIC_LIBRARIES ${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf/libprotobuf.a)
set(PROTOBUF_PROTOC_EXECUTABLE ${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf/protoc)
endif()
ExternalProject_Add(protobuf
PREFIX protobuf
DEPENDS zlib
GIT_REPOSITORY ${PROTOBUF_URL}
GIT_TAG ${PROTOBUF_TAG}
DOWNLOAD_DIR "${DOWNLOAD_LOCATION}"
BUILD_IN_SOURCE 1
BUILD_BYPRODUCTS ${PROTOBUF_PROTOC_EXECUTABLE} ${protobuf_STATIC_LIBRARIES}
SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/protobuf/src/protobuf
# SOURCE_SUBDIR cmake/ # Requires CMake 3.7, this will allow removal of CONFIGURE_COMMAND
# CONFIGURE_COMMAND resets some settings made in CMAKE_CACHE_ARGS and the generator used
CONFIGURE_COMMAND ${CMAKE_COMMAND} cmake/
-DCMAKE_POSITION_INDEPENDENT_CODE:BOOL=${tensorflow_ENABLE_POSITION_INDEPENDENT_CODE}
-DCMAKE_BUILD_TYPE:STRING=Release
-DCMAKE_VERBOSE_MAKEFILE:BOOL=OFF
-Dprotobuf_BUILD_TESTS:BOOL=OFF
-DZLIB_ROOT=${ZLIB_INSTALL}
${PROTOBUF_ADDITIONAL_CMAKE_OPTIONS}
INSTALL_COMMAND ""
CMAKE_CACHE_ARGS
-DCMAKE_POSITION_INDEPENDENT_CODE:BOOL=${tensorflow_ENABLE_POSITION_INDEPENDENT_CODE}
-DCMAKE_BUILD_TYPE:STRING=Release
-DCMAKE_VERBOSE_MAKEFILE:BOOL=OFF
-Dprotobuf_BUILD_TESTS:BOOL=OFF
-Dprotobuf_MSVC_STATIC_RUNTIME:BOOL=OFF
-DZLIB_ROOT:STRING=${ZLIB_INSTALL}
)
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