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new: allow protobuf to be compiled statically optionally

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Co-Authored-By: Leonardo Di Donato <leodidonato@gmail.com>
Signed-off-by: Lorenzo Fontana <lo@linux.com>
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Lorenzo Fontana 2019-12-12 19:04:07 +01:00 committed by Leo Di Donato
parent 66f8a47cc1
commit 74ac37c10a
1 changed files with 46 additions and 0 deletions
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46
cmake/modules/FindProtobuf.cmake Normal file
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#
# Copyright (C) 2019 The Falco Authors.
#
# 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.
#
option(
BUILD_STATIC_PROTOBUF
"Build a static version of protobuf (useful for building in Operating Systems that don't have the protobuf package)"
OFF)
if(NOT BUILD_STATIC_PROTOBUF)
# todo(fntlnz, leodido): check that protobuf version is greater or equal than 3.5.0
find_program(PROTOC NAMES protoc)
find_path(PROTOBUF_INCLUDE NAMES google/protobuf/message.h)
find_library(PROTOBUF_LIB NAMES libprotobuf.so)
if(PROTOC
AND PROTOBUF_INCLUDE
AND PROTOBUF_LIB)
message(STATUS "Found protobuf: compiler: ${PROTOC}, include: ${PROTOBUF_INCLUDE}, lib: ${PROTOBUF_LIB}")
else()
message(FATAL_ERROR "Couldn't find system protobuf")
endif()
else()
set(PROTOBUF_SRC "${PROJECT_BINARY_DIR}/protobuf-prefix/src/protobuf")
message(STATUS "Using bundled protobuf in '${PROTOBUF_SRC}'")
set(PROTOC "${PROTOBUF_SRC}/target/bin/protoc")
set(PROTOBUF_INCLUDE "${PROTOBUF_SRC}/target/include")
set(PROTOBUF_LIB "${PROTOBUF_SRC}/target/lib/libprotobuf.a")
ExternalProject_Add(
protobuf
URL "https://github.com/protocolbuffers/protobuf/releases/download/v3.8.0/protobuf-cpp-3.8.0.tar.gz"
URL_MD5 "9054bb5571905a28b3ae787d1d6cf8de"
CONFIGURE_COMMAND /usr/bin/env ./configure --with-zlib --prefix=${PROTOBUF_SRC}/target
BUILD_COMMAND ${CMD_MAKE}
BUILD_IN_SOURCE 1
BUILD_BYPRODUCTS ${PROTOC} ${PROTOBUF_INCLUDE} ${PROTOBUF_LIB}
INSTALL_COMMAND make install)
endif()