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This updates the mininum required version of CMake to 3.13, which is present in Debian Buster. At the same time, move all of our dependency handling to use `FetchContent_Declare()`, `FetchContent_Populate()` and `FetchContent_MakeAvailable()`. Since the latter was ony introduced in 3.14, provide a simple "polyfill" implementation for that. As an added benefit, the configure step for libffi and libunwind will now not be re-run every time the `CMakeLists.txt` changes. Other changes: - Explicitly spell out that we're testing up to 3.22 in `cmake_minimum_version()` - Rename `check_target()` to `sapi_check_target()` to avoid conflicts with Abseil.
30 lines
1.0 KiB
CMake
30 lines
1.0 KiB
CMake
# Copyright 2020 Google LLC
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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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FetchContent_Declare(zlib
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URL https://mirror.bazel.build/zlib.net/zlib-1.2.11.tar.gz
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URL_HASH SHA256=c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1
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PATCH_COMMAND patch -p1
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< "${SAPI_SOURCE_DIR}/sandboxed_api/bazel/external/zlib.patch"
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)
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FetchContent_MakeAvailable(zlib)
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set(ZLIB_FOUND TRUE)
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set(ZLIB_INCLUDE_DIRS ${zlib_SOURCE_DIR})
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add_library(ZLIB::ZLIB ALIAS zlibstatic)
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target_include_directories(zlibstatic PUBLIC
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${ZLIB_INCLUDE_DIRS}
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)
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