From 5b456dfc4f2c7efa6d5d54c323215844f9ac6fc0 Mon Sep 17 00:00:00 2001 From: DongHun Kwak Date: Tue, 22 Apr 2025 14:02:37 +0900 Subject: [PATCH] Import link-cplusplus 1.0.10 --- .cargo_vcs_info.json | 6 ++ .github/FUNDING.yml | 1 + .github/workflows/ci.yml | 99 ++++++++++++++++++++++ .gitignore | 2 + Cargo.toml | 64 ++++++++++++++ Cargo.toml.orig | 35 ++++++++ LICENSE-APACHE | 176 +++++++++++++++++++++++++++++++++++++++ LICENSE-MIT | 23 +++++ README.md | 79 ++++++++++++++++++ build.rs | 37 ++++++++ src/lib.rs | 66 +++++++++++++++ 11 files changed, 588 insertions(+) create mode 100644 .cargo_vcs_info.json create mode 100644 .github/FUNDING.yml create mode 100644 .github/workflows/ci.yml create mode 100644 .gitignore create mode 100644 Cargo.toml create mode 100644 Cargo.toml.orig create mode 100644 LICENSE-APACHE create mode 100644 LICENSE-MIT create mode 100644 README.md create mode 100644 build.rs create mode 100644 src/lib.rs diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json new file mode 100644 index 0000000..a199c46 --- /dev/null +++ b/.cargo_vcs_info.json @@ -0,0 +1,6 @@ +{ + "git": { + "sha1": "1c5fad6df6b234808a33da0ae3f26fec4f55199f" + }, + "path_in_vcs": "" +} \ No newline at end of file diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml new file mode 100644 index 0000000..7507077 --- /dev/null +++ b/.github/FUNDING.yml @@ -0,0 +1 @@ +github: dtolnay diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml new file mode 100644 index 0000000..ef4250b --- /dev/null +++ b/.github/workflows/ci.yml @@ -0,0 +1,99 @@ +name: CI + +on: + push: + pull_request: + workflow_dispatch: + schedule: [cron: "40 1 * * *"] + +permissions: + contents: read + +env: + RUSTFLAGS: -Dwarnings + +jobs: + pre_ci: + uses: dtolnay/.github/.github/workflows/pre_ci.yml@master + + test: + name: Rust ${{matrix.rust}} on ${{matrix.os}} + needs: pre_ci + if: needs.pre_ci.outputs.continue + runs-on: ${{matrix.os}}-latest + strategy: + fail-fast: false + matrix: + rust: [nightly, beta, stable] + os: [ubuntu, macos, windows] + include: + - os: ubuntu + rust: 1.53.0 + - os: macos + rust: 1.54.0 # Xcode 14 compatibility requires https://github.com/rust-lang/rust/pull/84449 + - os: windows + rust: 1.53.0 + timeout-minutes: 45 + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@master + with: + toolchain: ${{matrix.rust}} + - name: Enable type layout randomization + run: echo RUSTFLAGS=${RUSTFLAGS}\ -Zrandomize-layout >> $GITHUB_ENV + if: matrix.rust == 'nightly' + shell: bash + - run: cargo test + - uses: actions/upload-artifact@v4 + if: matrix.os == 'ubuntu' && matrix.rust == 'nightly' && always() + with: + name: Cargo.lock + path: Cargo.lock + continue-on-error: true + + minimal: + name: Minimal versions + needs: pre_ci + if: needs.pre_ci.outputs.continue + runs-on: ubuntu-latest + timeout-minutes: 45 + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@nightly + - run: cargo generate-lockfile -Z minimal-versions + - run: cargo check --locked + + doc: + name: Documentation + needs: pre_ci + if: needs.pre_ci.outputs.continue + runs-on: ubuntu-latest + timeout-minutes: 45 + env: + RUSTDOCFLAGS: -Dwarnings + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@nightly + - uses: dtolnay/install@cargo-docs-rs + - run: cargo docs-rs + + clippy: + name: Clippy + runs-on: ubuntu-latest + if: github.event_name != 'pull_request' + timeout-minutes: 45 + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@clippy + - run: cargo clippy -- -Dclippy::all -Dclippy::pedantic + + outdated: + name: Outdated + runs-on: ubuntu-latest + if: github.event_name != 'pull_request' + timeout-minutes: 45 + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + - uses: dtolnay/install@cargo-outdated + - run: cargo outdated --workspace --exit-code 1 diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..042776a --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +/Cargo.lock +/target/ diff --git a/Cargo.toml b/Cargo.toml new file mode 100644 index 0000000..8d69ee5 --- /dev/null +++ b/Cargo.toml @@ -0,0 +1,64 @@ +# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO +# +# When uploading crates to the registry Cargo will automatically +# "normalize" Cargo.toml files for maximal compatibility +# with all versions of Cargo and also rewrite `path` dependencies +# to registry (e.g., crates.io) dependencies. +# +# If you are reading this file be aware that the original Cargo.toml +# will likely look very different (and much more reasonable). +# See Cargo.toml.orig for the original contents. + +[package] +edition = "2018" +rust-version = "1.51" +name = "link-cplusplus" +version = "1.0.10" +authors = ["David Tolnay "] +build = "build.rs" +links = "cplusplus" +autolib = false +autobins = false +autoexamples = false +autotests = false +autobenches = false +description = "Link libstdc++ or libc++ automatically or manually" +documentation = "https://docs.rs/link-cplusplus" +readme = "README.md" +keywords = [ + "linkage", + "c++", +] +categories = [ + "external-ffi-bindings", + "development-tools::ffi", + "compilers", + "no-std", + "no-std::no-alloc", +] +license = "MIT OR Apache-2.0" +repository = "https://github.com/dtolnay/link-cplusplus" + +[package.metadata.docs.rs] +rustdoc-args = [ + "--generate-link-to-definition", + "--extern-html-root-url=core=https://doc.rust-lang.org", + "--extern-html-root-url=alloc=https://doc.rust-lang.org", + "--extern-html-root-url=std=https://doc.rust-lang.org", +] +targets = ["x86_64-unknown-linux-gnu"] + +[features] +default = [] +"libc++" = [] +libcxx = ["libc++"] +"libstdc++" = [] +libstdcxx = ["libstdc++"] +nothing = [] + +[lib] +name = "link_cplusplus" +path = "src/lib.rs" + +[build-dependencies.cc] +version = "1.0" diff --git a/Cargo.toml.orig b/Cargo.toml.orig new file mode 100644 index 0000000..3c7a909 --- /dev/null +++ b/Cargo.toml.orig @@ -0,0 +1,35 @@ +[package] +name = "link-cplusplus" +version = "1.0.10" +authors = ["David Tolnay "] +categories = ["external-ffi-bindings", "development-tools::ffi", "compilers", "no-std", "no-std::no-alloc"] +description = "Link libstdc++ or libc++ automatically or manually" +documentation = "https://docs.rs/link-cplusplus" +edition = "2018" +keywords = ["linkage", "c++"] +license = "MIT OR Apache-2.0" +links = "cplusplus" +repository = "https://github.com/dtolnay/link-cplusplus" +rust-version = "1.51" + +[build-dependencies] +cc = "1.0" + +[features] +default = [] # automatic +"libstdc++" = [] # force libstdc++ +"libc++" = [] # force libc++ +nothing = [] # link nothing, determined somewhere else + +# deprecated aliases +libstdcxx = ["libstdc++"] +libcxx = ["libc++"] + +[package.metadata.docs.rs] +targets = ["x86_64-unknown-linux-gnu"] +rustdoc-args = [ + "--generate-link-to-definition", + "--extern-html-root-url=core=https://doc.rust-lang.org", + "--extern-html-root-url=alloc=https://doc.rust-lang.org", + "--extern-html-root-url=std=https://doc.rust-lang.org", +] diff --git a/LICENSE-APACHE b/LICENSE-APACHE new file mode 100644 index 0000000..1b5ec8b --- /dev/null +++ b/LICENSE-APACHE @@ -0,0 +1,176 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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IN NO EVENT +SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR +IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. diff --git a/README.md b/README.md new file mode 100644 index 0000000..7743b4f --- /dev/null +++ b/README.md @@ -0,0 +1,79 @@ +`-lstdc++` or `-lc++` +===================== + +[github](https://github.com/dtolnay/link-cplusplus) +[crates.io](https://crates.io/crates/link-cplusplus) +[docs.rs](https://docs.rs/link-cplusplus) +[build status](https://github.com/dtolnay/link-cplusplus/actions?query=branch%3Amaster) + +This crate exists for the purpose of passing `-lstdc++` or `-lc++` to the +linker, while making it possible for an application to make that choice on +behalf of its library dependencies. + +Without this crate, a library would need to: + +- pick one or the other to link, with no way for downstream applications to + override the choice; +- or link neither and require an explicit link flag provided by downstream + applications even if they would be fine with a default choice; + +neither of which are good experiences. + +
+ +## Options + +An application or library that is fine with either of libstdc++ or libc++ being +linked, whichever is the platform's default, should use the following in +Cargo.toml: + +```toml +[dependencies] +link-cplusplus = "1.0" +``` + +An application that wants a particular one or the other linked should use: + +```toml +[dependencies] +link-cplusplus = { version = "1.0", features = ["libstdc++"] } + +# or + +link-cplusplus = { version = "1.0", features = ["libc++"] } +``` + +An application that wants to handle its own more complicated logic for link +flags from its build script can make this crate do nothing by using: + +```toml +[dependencies] +link-cplusplus = { version = "1.0", features = ["nothing"] } +``` + +Lastly, make sure to add an explicit `extern crate` dependency to your crate +root, since the link-cplusplus crate will be otherwise unused and its link flags +dropped. + +```rust +// src/lib.rs + +extern crate link_cplusplus; +``` + +
+ +#### License + + +Licensed under either of Apache License, Version +2.0 or MIT license at your option. + + +
+ + +Unless you explicitly state otherwise, any contribution intentionally submitted +for inclusion in this project by you, as defined in the Apache-2.0 license, +shall be dual licensed as above, without any additional terms or conditions. + diff --git a/build.rs b/build.rs new file mode 100644 index 0000000..08ce2f8 --- /dev/null +++ b/build.rs @@ -0,0 +1,37 @@ +use std::env; +use std::fs; +use std::path::PathBuf; + +fn main() { + println!("cargo:rerun-if-changed=build.rs"); + + let libstdcxx = cfg!(feature = "libstdc++"); + let libcxx = cfg!(feature = "libc++"); + let nothing = cfg!(feature = "nothing"); + + if nothing { + return; + } + + if libstdcxx && libcxx { + println!( + "cargo:warning=-lstdc++ and -lc++ are both requested, \ + using the platform's default" + ); + } + + match (libstdcxx, libcxx) { + (true, false) => println!("cargo:rustc-link-lib=stdc++"), + (false, true) => println!("cargo:rustc-link-lib=c++"), + (false, false) | (true, true) => { + // The platform's default. + let out_dir = env::var_os("OUT_DIR").expect("missing OUT_DIR"); + let path = PathBuf::from(out_dir).join("dummy.cc"); + fs::write(&path, "int rust_link_cplusplus;\n").unwrap(); + cc::Build::new() + .cpp(true) + .file(&path) + .compile("link-cplusplus"); + } + } +} diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000..7864d59 --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,66 @@ +//! [![github]](https://github.com/dtolnay/link-cplusplus) [![crates-io]](https://crates.io/crates/link-cplusplus) [![docs-rs]](https://docs.rs/link-cplusplus) +//! +//! [github]: https://img.shields.io/badge/github-8da0cb?style=for-the-badge&labelColor=555555&logo=github +//! [crates-io]: https://img.shields.io/badge/crates.io-fc8d62?style=for-the-badge&labelColor=555555&logo=rust +//! [docs-rs]: https://img.shields.io/badge/docs.rs-66c2a5?style=for-the-badge&labelColor=555555&logo=docs.rs +//! +//!
+//! +//! # `-lstdc++` or `-lc++` +//! +//! This crate exists for the purpose of passing `-lstdc++` or `-lc++` to the +//! linker, while making it possible for an application to make that choice on +//! behalf of its library dependencies. +//! +//! Without this crate, a library would need to: +//! +//! - pick one or the other to link, with no way for downstream applications to +//! override the choice; +//! - or link neither and require an explicit link flag provided by downstream +//! applications even if they would be fine with a default choice; +//! +//! neither of which are good experiences. +//! +//!
+//! +//! # Options +//! +//! An application or library that is fine with either of libstdc++ or libc++ +//! being linked, whichever is the platform's default, should use the following +//! in Cargo.toml: +//! +//! ```toml +//! [dependencies] +//! link-cplusplus = "1.0" +//! ``` +//! +//! An application that wants a particular one or the other linked should use: +//! +//! ```toml +//! [dependencies] +//! link-cplusplus = { version = "1.0", features = ["libstdc++"] } +//! +//! # or +//! +//! link-cplusplus = { version = "1.0", features = ["libc++"] } +//! ``` +//! +//! An application that wants to handle its own more complicated logic for link +//! flags from its build script can make this crate do nothing by using: +//! +//! ```toml +//! [dependencies] +//! link-cplusplus = { version = "1.0", features = ["nothing"] } +//! ``` +//! +//! Lastly, make sure to add an explicit `extern crate` dependency to your crate +//! root, since the link-cplusplus crate will be otherwise unused and its link +//! flags dropped. +//! +//! ``` +//! // src/lib.rs +//! +//! extern crate link_cplusplus; +//! ``` + +#![no_std] -- 2.34.1