# Copyright 2016 Google Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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include (FindProtobuf)
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set(PROTOBUF_TARGET external.protobuf)
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set(PROTOBUF_INSTALL_DIR ${CMAKE_CURRENT_BINARY_DIR}/${PROTOBUF_TARGET})
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set(PROTOBUF_INCLUDE_DIRS ${PROTOBUF_INSTALL_DIR}/include)
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include_directories(${PROTOBUF_INCLUDE_DIRS})
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include_directories(${CMAKE_CURRENT_BINARY_DIR})
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IF(CMAKE_BUILD_TYPE MATCHES Debug)
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set(PROTOBUF_LIBRARIES protobufd)
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ELSE()
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set(PROTOBUF_LIBRARIES protobuf)
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ENDIF()
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foreach(lib ${PROTOBUF_LIBRARIES})
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list(APPEND PROTOBUF_BUILD_BYPRODUCTS ${PROTOBUF_INSTALL_DIR}/lib/lib${lib}.a)
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add_library(${lib} STATIC IMPORTED)
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set_property(TARGET ${lib} PROPERTY IMPORTED_LOCATION
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${PROTOBUF_INSTALL_DIR}/lib/lib${lib}.a)
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add_dependencies(${lib} ${PROTOBUF_TARGET})
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endforeach(lib)
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set(PROTOBUF_PROTOC_EXECUTABLE ${PROTOBUF_INSTALL_DIR}/bin/protoc)
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list(APPEND PROTOBUF_BUILD_BYPRODUCTS ${PROTOBUF_PROTOC_EXECUTABLE})
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add_executable(protoc IMPORTED)
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set_property(TARGET protoc PROPERTY IMPORTED_LOCATION
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${PROTOBUF_PROTOC_EXECUTABLE})
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add_dependencies(protoc ${PROTOBUF_TARGET})
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include (ExternalProject)
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ExternalProject_Add(${PROTOBUF_TARGET}
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PREFIX ${PROTOBUF_TARGET}
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GIT_REPOSITORY https://github.com/google/protobuf.git
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GIT_TAG 47b7d2c
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UPDATE_COMMAND ""
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CONFIGURE_COMMAND ${CMAKE_COMMAND} ${PROTOBUF_INSTALL_DIR}/src/${PROTOBUF_TARGET}/cmake
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-G${CMAKE_GENERATOR}
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-DCMAKE_INSTALL_PREFIX=${PROTOBUF_INSTALL_DIR}
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-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
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-DCMAKE_POSITION_INDEPENDENT_CODE=ON
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-DCMAKE_C_COMPILER:FILEPATH=${CMAKE_C_COMPILER}
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-DCMAKE_CXX_COMPILER:FILEPATH=${CMAKE_CXX_COMPILER}
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-DCMAKE_C_FLAGS=${PROTOBUF_CFLAGS}
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-DCMAKE_CXX_FLAGS=${PROTOBUF_CXXFLAGS}
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-Dprotobuf_BUILD_TESTS=OFF
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BUILD_BYPRODUCTS ${PROTOBUF_BUILD_BYPRODUCTS}
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)
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# cmake 3.7 uses Protobuf_ when 3.5 PROTOBUF_ prefixes.
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set(Protobuf_INCLUDE_DIRS ${PROTOBUF_INCLUDE_DIRS})
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set(Protobuf_LIBRARIES ${PROTOBUF_LIBRARIES})
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set(Protobuf_PROTOC_EXECUTABLE ${PROTOBUF_PROTOC_EXECUTABLE})
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