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https://github.com/google/sandboxed-api.git
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3c51348aaf
This change moves away from a classical superbuild which downloads and builds at build time. Instead, we now follow a "Fetch Content" workflow (available as FetchContent in CMake 3.11+) and download dependencies at config time. Rationale: Superbuild projects have the disadvantage that projects cannot directly access their individual declared targets. This is not a problem with regular libraries, as those are usually/supposed to be installed. With Sandboxed API, this is not desirable, as it has dependencies like Abseil and glog, which are almost always consumed by including their source tree using add_subdirectory(). Fixes #10 and makes external embedding easier. PiperOrigin-RevId: 260129870 Change-Id: I70f295f29a6e4fc8c330512c94b01ef10c017166
41 lines
1.5 KiB
CMake
41 lines
1.5 KiB
CMake
# Copyright 2019 Google LLC. 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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# Downloads and unpacks Protobuf at configure time
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set(workdir "${CMAKE_BINARY_DIR}/protobuf-download")
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configure_file("${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt.in"
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"${workdir}/CMakeLists.txt")
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execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
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RESULT_VARIABLE error
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WORKING_DIRECTORY "${workdir}")
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if(error)
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message(FATAL_ERROR "CMake step for ${PROJECT_NAME} failed: ${error}")
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endif()
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execute_process(COMMAND ${CMAKE_COMMAND} --build .
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RESULT_VARIABLE error
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WORKING_DIRECTORY "${workdir}")
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if(error)
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message(FATAL_ERROR "Build step for ${PROJECT_NAME} failed: ${error}")
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endif()
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set(protobuf_BUILD_TESTS OFF CACHE BOOL "")
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set(protobuf_BUILD_SHARED_LIBS OFF CACHE BOOL "")
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set(protobuf_WITH_ZLIB OFF CACHE BOOL "")
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add_subdirectory("${CMAKE_BINARY_DIR}/protobuf-src/cmake"
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"${CMAKE_BINARY_DIR}/protobuf-build" EXCLUDE_FROM_ALL)
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