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build: allow building gRPC as an alternative to dynamic linking

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Co-Authored-By: Leonardo Di Donato <leodidonato@gmail.com>
Signed-off-by: Lorenzo Fontana <lo@linux.com>
This commit is contained in:
Lorenzo Fontana
2019-12-12 17:06:33 +01:00
committed by Leo Di Donato
parent 12d76f4426
commit ce568a16a6
1 changed files with 59 additions and 26 deletions
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85
cmake/modules/FindGRPC.cmake
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@@ -1,35 +1,68 @@
#
# 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
# 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.
# 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.
#
find_path(GRPCXX_INCLUDE NAMES grpc++/grpc++.h)
if(GRPCXX_INCLUDE)
set(GRPC_INCLUDE ${GRPCXX_INCLUDE})
option(BUILD_STATIC_GRPC
"Build a static version of gRPC (useful for building in Operating Systems that don't have the gRPC package)" OFF)
if(NOT BUILD_STATIC_GRPC)
find_path(GRPCXX_INCLUDE NAMES grpc++/grpc++.h)
if(GRPCXX_INCLUDE)
set(GRPC_INCLUDE ${GRPCXX_INCLUDE})
else()
find_path(GRPCPP_INCLUDE NAMES grpcpp/grpcpp.h)
set(GRPC_INCLUDE ${GRPCPP_INCLUDE})
add_definitions(-DGRPC_INCLUDE_IS_GRPCPP=1)
endif()
find_library(GRPC_LIB NAMES grpc)
find_library(GRPCPP_LIB NAMES grpc++)
if(GRPC_INCLUDE
AND GRPC_LIB
AND GRPCPP_LIB)
message(STATUS "Found grpc: include: ${GRPC_INCLUDE}, C lib: ${GRPC_LIB}, C++ lib: ${GRPCPP_LIB}")
else()
message(FATAL_ERROR "Couldn't find system grpc")
endif()
find_program(GRPC_CPP_PLUGIN grpc_cpp_plugin)
if(NOT GRPC_CPP_PLUGIN)
message(FATAL_ERROR "System grpc_cpp_plugin not found")
endif()
else()
find_path(GRPCPP_INCLUDE NAMES grpcpp/grpcpp.h)
set(GRPC_INCLUDE ${GRPCPP_INCLUDE})
add_definitions(-DGRPC_INCLUDE_IS_GRPCPP=1)
endif()
find_library(GRPC_LIB NAMES grpc)
find_library(GRPCPP_LIB NAMES grpc++)
if(GRPC_INCLUDE AND GRPC_LIB AND GRPCPP_LIB)
message(STATUS "Found grpc: include: ${GRPC_INCLUDE}, C lib: ${GRPC_LIB}, C++ lib: ${GRPCPP_LIB}")
else()
message(FATAL_ERROR "Couldn't find system grpc")
endif()
find_program(GRPC_CPP_PLUGIN grpc_cpp_plugin)
if(NOT GRPC_CPP_PLUGIN)
message(FATAL_ERROR "System grpc_cpp_plugin not found")
find_package(PkgConfig)
if(NOT PKG_CONFIG_FOUND)
message(FATAL_ERROR "pkg-config binary not found")
endif()
message(STATUS "Found pkg-config executable: ${PKG_CONFIG_EXECUTABLE}")
set(GRPC_SRC "${PROJECT_BINARY_DIR}/grpc-prefix/src/grpc")
message(STATUS "Using bundled grpc in '${GRPC_SRC}'")
set(GRPC_INCLUDE "${GRPC_SRC}/include")
set(GRPC_LIB "${GRPC_SRC}/libs/opt/libgrpc.a")
set(GRPCPP_LIB "${GRPC_SRC}/libs/opt/libgrpc++.a")
set(GRPC_CPP_PLUGIN "${GRPC_SRC}/bins/opt/grpc_cpp_plugin")
ExternalProject_Add(
grpc
URL "https://github.com/grpc/grpc/archive/v1.25.0.tar.gz"
URL_MD5 "3a875f7b3f0e3bdd3a603500bcef3d41"
CONFIGURE_COMMAND ""
BUILD_COMMAND
CFLAGS=-Wno-implicit-fallthrough
PKG_CONFIG=${PKG_CONFIG_EXECUTABLE}
make
grpc_cpp_plugin
static_cxx
static_c
BUILD_IN_SOURCE 1
BUILD_BYPRODUCTS ${GRPC_LIB} ${GRPCPP_LIB}
INSTALL_COMMAND "")
endif()