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[cmake] root wrapper
allow the existence of a `CMakeLists.txt` file at root, for easier integration with other projects expecting this file at root. Existing integration point, within `build/cmake/`, still works as expected.
This commit is contained in:
Yann Collet
parent
f42dee27b6
commit
c9d3af9ed0
21
.gitignore
vendored
21
.gitignore
vendored
@ -22,16 +22,6 @@ zstdmt
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*.out
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*.app
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# Test artefacts
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tmp*
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*.zst
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*.zstd
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dictionary.
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dictionary
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NUL
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cmakebuild/
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install/
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# Build artefacts
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contrib/linux-kernel/linux/
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projects/
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@ -40,6 +30,17 @@ bin/
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buck-out/
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build-*
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*.gcda
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cmakebuild/
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cmake-build/
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# Test artefacts
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tmp*
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*.zst
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*.zstd
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dictionary.
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dictionary
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NUL
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install/
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# IDE
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.clang_complete
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11
CMakeLists.txt
Normal file
11
CMakeLists.txt
Normal file
@ -0,0 +1,11 @@
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cmake_minimum_required(VERSION 3.10)
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# Thin wrapper so `cmake -S .` behaves like `cmake -S build/cmake`.
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# Policy lives in build/cmake; keep parent project language-less.
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project(zstd-superbuild LANGUAGES NONE)
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if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
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message(FATAL_ERROR "In-source builds are not supported. Specify -B <build-dir>.")
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endif()
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add_subdirectory(build/cmake)
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43
README.md
43
README.md
@ -120,20 +120,20 @@ Dictionary gains are mostly effective in the first few KB. Then, the compression
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## Build instructions
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`make` is the officially maintained build system of this project.
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All other build systems are "compatible" and 3rd-party maintained,
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they may feature small differences in advanced options.
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When your system allows it, prefer using `make` to build `zstd` and `libzstd`.
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`make` is the main build system of this project.
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It is the reference, and other build systems are periodically updated to stay compatible.
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However, small drifts and feature differences can be present, since perfect synchronization is difficult.
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For this reason, when your build system allows it, prefer employing `make`.
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### Makefile
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Assuming your system supports standard `make` (or `gmake`),
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invoking `make` in root directory will generate `zstd` cli in root directory.
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It will also create `libzstd` into `lib/`.
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just invoking `make` in root directory generates `zstd` cli at root,
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and also generates `libzstd` into `lib/`.
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Other standard targets include:
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- `make install` : create and install zstd cli, library and man pages
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- `make check` : create and run `zstd`, test its behavior on local platform
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- `make install` : install zstd cli, library and man pages
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- `make check` : run `zstd`, test its essential behavior on local platform
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The `Makefile` follows the [GNU Standard Makefile conventions](https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html),
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allowing staged install, standard compilation flags, directory variables and command variables.
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@ -144,9 +144,16 @@ and in [`programs/README.md`](programs/README.md#compilation-variables) for the
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### cmake
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A `cmake` project generator is provided within `build/cmake`.
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It can generate Makefiles or other build scripts
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to create `zstd` binary, and `libzstd` dynamic and static libraries.
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A `cmake` project generator is available for generating Makefiles or other build scripts
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to create the `zstd` binary as well as `libzstd` dynamic and static libraries.
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The repository root now contains a minimal `CMakeLists.txt` that forwards to `build/cmake`,
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so you can configure the project with a standard `cmake -S .` invocation,
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while the historical `cmake -S build/cmake` entry point remains fully supported.
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```bash
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cmake -S . -B build-cmake
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cmake --build build-cmake
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```
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By default, `CMAKE_BUILD_TYPE` is set to `Release`.
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@ -156,7 +163,7 @@ By default, `CMAKE_BUILD_TYPE` is set to `Release`.
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To perform a Fat/Universal2 build and install use the following commands:
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```bash
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cmake -B build-cmake-debug -S build/cmake -G Ninja -DCMAKE_OSX_ARCHITECTURES="x86_64;x86_64h;arm64"
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cmake -S . -B build-cmake-debug -G Ninja -DCMAKE_OSX_ARCHITECTURES="x86_64;x86_64h;arm64"
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cd build-cmake-debug
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ninja
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sudo ninja install
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@ -198,10 +205,11 @@ If the version is out of date, please [create an issue or pull request](https://
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### Visual Studio (Windows)
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Going into `build` directory, you will find additional possibilities:
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- Projects for Visual Studio 2005, 2008 and 2010.
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- Projects for Visual Studio 2008 and 2010.
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+ VS2010 project is compatible with VS2012, VS2013, VS2015 and VS2017.
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- Automated build scripts for Visual compiler by [@KrzysFR](https://github.com/KrzysFR), in `build/VS_scripts`,
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which will build `zstd` cli and `libzstd` library without any need to open Visual Studio solution.
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- It is now recommended to generate Visual Studio solutions from `cmake`
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### Buck
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@ -210,7 +218,7 @@ The output binary will be in `buck-out/gen/programs/`.
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### Bazel
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You easily can integrate zstd into your Bazel project by using the module hosted on the [Bazel Central Repository](https://registry.bazel.build/modules/zstd).
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You can integrate zstd into your Bazel project by using the module hosted on the [Bazel Central Repository](https://registry.bazel.build/modules/zstd).
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## Testing
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@ -221,9 +229,9 @@ For information on CI testing, please refer to `TESTING.md`.
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## Status
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Zstandard is currently deployed within Facebook and many other large cloud infrastructures.
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It is run continuously to compress large amounts of data in multiple formats and use cases.
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Zstandard is considered safe for production environments.
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Zstandard is deployed within Meta and many other large cloud infrastructures,
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to compress humongous amounts of data in various formats and use cases.
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It is also continuously fuzzed for security issues by Google's [oss-fuzz](https://github.com/google/oss-fuzz/tree/master/projects/zstd) program.
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## License
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@ -232,6 +240,5 @@ Zstandard is dual-licensed under [BSD](LICENSE) OR [GPLv2](COPYING).
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## Contributing
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The `dev` branch is the one where all contributions are merged before reaching `release`.
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If you plan to propose a patch, please commit into the `dev` branch, or its own feature branch.
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Direct commit to `release` are not permitted.
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For more information, please read [CONTRIBUTING](CONTRIBUTING.md).
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@ -7,6 +7,15 @@ variables.
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## How to build
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You can configure the project from the repository root thanks to the forwarding
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`CMakeLists.txt`:
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```sh
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cmake -S . -B build-cmake
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cmake --build build-cmake
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```
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The historical workflow that starts configuration from `build/cmake` continues
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to work as described below.
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As cmake doesn't support command like `cmake clean`, it's recommended to perform an "out of source build".
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To do this, you can create a new directory and build in it:
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```sh
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