pkg-config-0.3.27/.cargo_vcs_info.json0000644000000001360000000000100131510ustar { "git": { "sha1": "80657406d633630af0f22a4b54dc95487d4f9beb" }, "path_in_vcs": "" }pkg-config-0.3.27/.github/workflows/ci.yml000064400000000000000000000014721046102023000164600ustar 00000000000000name: CI on: workflow_dispatch: push: branches: [ master ] pull_request: branches: [ master ] env: CARGO_TERM_COLOR: always jobs: build: name: ${{ matrix.rust }} runs-on: ubuntu-latest strategy: fail-fast: false matrix: rust: - 1.30.0 - stable - beta - nightly steps: - uses: actions/checkout@v2 - uses: actions-rs/toolchain@v1 with: toolchain: ${{ matrix.rust }} default: true profile: minimal - run: rustup component add rustfmt-preview - name: cargo fmt --all -- --check if stable run: | if [ "${{ matrix.rust }}" = "stable" ]; then cargo fmt --all -- --check fi - run: | cargo build --verbose - run: | cargo test --verbose pkg-config-0.3.27/.gitignore000064400000000000000000000000401046102023000137230ustar 00000000000000/target /Cargo.lock .idea *.iml pkg-config-0.3.27/CHANGELOG.md000064400000000000000000000102001046102023000135430ustar 00000000000000# Changelog All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [0.3.27] - 2023-05-03 ### Added - Support falling back to `pkgconf` if `pkg-config` is not available (#145). ### Changed - Simplify running `pkg-config` (#144). - Document MSRV in `Cargo.toml` via `rust-version`. - Fix a couple of minor clippy warnings (#147). ## [0.3.26] - 2022-10-26 ### Added - Support for handling full paths to libraries in addition to normal `-l` linker flags (#134). ## [0.3.25] - 2022-03-31 ### Added - Support for parsing `-Wl` linker arguments from the `Libs` lines and passing them to the linker as well as making them available via `Library::ld_args` (#131). ### Changed - Use SPDX license format and remove obsolete badge info (#129). ## [0.3.24] - 2021-12-11 ### Fixed - Re-add `target_supported()`, which was accidentally removed in 0.3.15 (#128). ## [0.3.23] - 2021-12-06 ### Changed - Improve error messages when a `pkg-config` package can't be found (#127). ## [0.3.22] - 2021-10-24 ### Fixed - `pkg-config` compiles again with Rust 1.30 or newer. 0.3.21 accidentally made use of API only available since 1.40 (#124, #125). ### Changed - Switched from Travis to GitHub Actions for the CI. Travis is dysfunctional since quite some time (#126). ## [0.3.21] - 2021-10-22 ### Fixed - Tests succeed again on macOS (#122). ### Changed - Improve error message in case of missing pkg-config and provide instructions how it can be installed (#121). ## [0.3.20] - 2021-09-25 ### Fixed - Use target-specific pkg-config consistently everywhere (#121, #118). ## [0.3.19] - 2020-10-13 ### Added - Add `README.md` to be displayed on crates.io (#111). - Support for `-isystem`, `-iquote` and `-idirafter` include flags (#115). ### Changed - Improve documentation for cross-compilation (#113). - Allow overriding system root via the `PKG_CONFIG_SYSROOT_DIR` or `SYSROOT` environment variable (#82). ## [0.3.18] - 2020-07-11 ### Fixed - Use `env::var_os()` almost everywhere to handle non-UTF8 paths in environment variables, and also improve error handling around environment variable handling (#106). ### Changed - Default the `env_metadata` build parameter to `true` instead of `false`. Whenever a pkg-config related environment variable changes it would make sense to rebuild crates that use pkg-config, or otherwise changes might not be picked up. As such the previous default didn't make much sense (#105). ## [0.3.17] - 2019-11-02 ### Fixed - Fix support for multiple version number constraints (#95) ## [0.3.16] - 2019-09-09 ### Changed - Stop using deprecated functions and require Rust 1.30 (#84) ### Fixed - Fix repository URL in README.md - Fix various clippy warnings ### Added - Run `cargo fmt` as part of the CI (#89) - Derive `Clone` for `Library` and `Debug` for `Config (#91) - Add support for `PKG_CONFIG_ALLOW_SYSTEM_CFLAGS` and enable by default (#93) ## [0.3.15] - 2019-07-25 ### Changed - Changes minimum documented rust version to 1.28 (#76) ### Fixed - Fix Travis CI badge url (#78) - Fix project name in README.md (#81) ### Added - Support specifying range of versions (#75) - Allow cross-compilation if pkg-config is customized (#44, #86) ## [0.3.14] - 2018-08-28 ### Fixed - Don't append .lib suffix on MSVC builds (#72) ## [0.3.13] - 2018-08-06 ### Fixed - Fix MSVC support to actually work and consider library paths too (#71) ## [0.3.12] - 2018-06-18 ### Added - Support for MSVC (#70) - Document and test Rust 1.13 as minimally supported version (#66) ## [0.3.11] - 2018-04-24 ### Fixed - Re-added AsciiExt import (#65) ## [0.3.10] - 2018-04-23 ### Added - Allow static linking of /usr/ on macOS (#42) - Add support for parsing `-Wl,` style framework flags (#48) - Parse defines in `pkg-config` output (#49) - Rerun on `PKG_CONFIG_PATH` changes (#50) - Introduce target-scoped variables (#58) - Respect pkg-config escaping rules used with --cflags and --libs (#61) ### Changed - Use `?` instead of `try!()` in the codebase (#63) pkg-config-0.3.27/Cargo.toml0000644000000016640000000000100111560ustar # 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] rust-version = "1.30" name = "pkg-config" version = "0.3.27" authors = ["Alex Crichton "] description = """ A library to run the pkg-config system tool at build time in order to be used in Cargo build scripts. """ documentation = "https://docs.rs/pkg-config" readme = "README.md" keywords = ["build-dependencies"] license = "MIT OR Apache-2.0" repository = "https://github.com/rust-lang/pkg-config-rs" [dev-dependencies.lazy_static] version = "1" pkg-config-0.3.27/Cargo.toml.orig000064400000000000000000000007321046102023000146320ustar 00000000000000[package] name = "pkg-config" version = "0.3.27" authors = ["Alex Crichton "] license = "MIT OR Apache-2.0" repository = "https://github.com/rust-lang/pkg-config-rs" documentation = "https://docs.rs/pkg-config" readme = "README.md" description = """ A library to run the pkg-config system tool at build time in order to be used in Cargo build scripts. """ keywords = ["build-dependencies"] rust-version = "1.30" [dev-dependencies] lazy_static = "1" pkg-config-0.3.27/LICENSE-APACHE000064400000000000000000000251371046102023000136750ustar 00000000000000 Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. 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See the License for the specific language governing permissions and limitations under the License. pkg-config-0.3.27/LICENSE-MIT000064400000000000000000000020411046102023000133720ustar 00000000000000Copyright (c) 2014 Alex Crichton Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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. pkg-config-0.3.27/README.md000064400000000000000000000055061046102023000132260ustar 00000000000000# pkg-config-rs [![Build Status](https://github.com/rust-lang/pkg-config-rs/actions/workflows/ci.yml/badge.svg)](https://github.com/rust-lang/pkg-config-rs/actions) [![Rust](https://img.shields.io/badge/rust-1.30%2B-blue.svg?maxAge=3600)](https://github.com/rust-lang/pkg-config-rs/) [Documentation](https://docs.rs/pkg-config) A simple library meant to be used as a build dependency with Cargo packages in order to use the system `pkg-config` tool (if available) to determine where a library is located. You can use this crate directly to probe for specific libraries, or use [system-deps](https://github.com/gdesmott/system-deps) to declare all your `pkg-config` dependencies in `Cargo.toml`. This library requires Rust 1.30+. # Example Find the system library named `foo`, with minimum version 1.2.3: ```rust extern crate pkg_config; fn main() { pkg_config::Config::new().atleast_version("1.2.3").probe("foo").unwrap(); } ``` Find the system library named `foo`, with no version requirement (not recommended): ```rust extern crate pkg_config; fn main() { pkg_config::probe_library("foo").unwrap(); } ``` # External configuration via target-scoped environment variables In cross-compilation context, it is useful to manage separately `PKG_CONFIG_PATH` and a few other variables for the `host` and the `target` platform. The supported variables are: `PKG_CONFIG_PATH`, `PKG_CONFIG_LIBDIR`, and `PKG_CONFIG_SYSROOT_DIR`. Each of these variables can also be supplied with certain prefixes and suffixes, in the following prioritized order: 1. `_` - for example, `PKG_CONFIG_PATH_x86_64-unknown-linux-gnu` 2. `_` - for example, `PKG_CONFIG_PATH_x86_64_unknown_linux_gnu` 3. `_` - for example, `HOST_PKG_CONFIG_PATH` or `TARGET_PKG_CONFIG_PATH` 4. `` - a plain `PKG_CONFIG_PATH` This crate will allow `pkg-config` to be used in cross-compilation if `PKG_CONFIG_SYSROOT_DIR` or `PKG_CONFIG` is set. You can set `PKG_CONFIG_ALLOW_CROSS=1` to bypass the compatibility check, but please note that enabling use of `pkg-config` in cross-compilation without appropriate sysroot and search paths set is likely to break builds. Some Rust sys crates support building vendored libraries from source, which may be a work around for lack of cross-compilation support in `pkg-config`. # License This project is licensed under either of * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0) * MIT license ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT) at your option. ### Contribution Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in pkg-config-rs by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions. pkg-config-0.3.27/src/lib.rs000064400000000000000000001076031046102023000136530ustar 00000000000000//! A build dependency for Cargo libraries to find system artifacts through the //! `pkg-config` utility. //! //! This library will shell out to `pkg-config` as part of build scripts and //! probe the system to determine how to link to a specified library. The //! `Config` structure serves as a method of configuring how `pkg-config` is //! invoked in a builder style. //! //! A number of environment variables are available to globally configure how //! this crate will invoke `pkg-config`: //! //! * `FOO_NO_PKG_CONFIG` - if set, this will disable running `pkg-config` when //! probing for the library named `foo`. //! //! * `PKG_CONFIG_ALLOW_CROSS` - The `pkg-config` command usually doesn't //! support cross-compilation, and this crate prevents it from selecting //! incompatible versions of libraries. //! Setting `PKG_CONFIG_ALLOW_CROSS=1` disables this protection, which is //! likely to cause linking errors, unless `pkg-config` has been configured //! to use appropriate sysroot and search paths for the target platform. //! //! There are also a number of environment variables which can configure how a //! library is linked to (dynamically vs statically). These variables control //! whether the `--static` flag is passed. Note that this behavior can be //! overridden by configuring explicitly on `Config`. The variables are checked //! in the following order: //! //! * `FOO_STATIC` - pass `--static` for the library `foo` //! * `FOO_DYNAMIC` - do not pass `--static` for the library `foo` //! * `PKG_CONFIG_ALL_STATIC` - pass `--static` for all libraries //! * `PKG_CONFIG_ALL_DYNAMIC` - do not pass `--static` for all libraries //! //! After running `pkg-config` all appropriate Cargo metadata will be printed on //! stdout if the search was successful. //! //! # Example //! //! Find the system library named `foo`, with minimum version 1.2.3: //! //! ```no_run //! fn main() { //! pkg_config::Config::new().atleast_version("1.2.3").probe("foo").unwrap(); //! } //! ``` //! //! Find the system library named `foo`, with no version requirement (not //! recommended): //! //! ```no_run //! fn main() { //! pkg_config::probe_library("foo").unwrap(); //! } //! ``` //! //! Configure how library `foo` is linked to. //! //! ```no_run //! fn main() { //! pkg_config::Config::new().atleast_version("1.2.3").statik(true).probe("foo").unwrap(); //! } //! ``` #![doc(html_root_url = "https://docs.rs/pkg-config/0.3")] use std::collections::HashMap; use std::env; use std::error; use std::ffi::{OsStr, OsString}; use std::fmt; use std::io; use std::ops::{Bound, RangeBounds}; use std::path::PathBuf; use std::process::{Command, Output}; use std::str; #[derive(Clone, Debug)] pub struct Config { statik: Option, min_version: Bound, max_version: Bound, extra_args: Vec, cargo_metadata: bool, env_metadata: bool, print_system_libs: bool, print_system_cflags: bool, } #[derive(Clone, Debug)] pub struct Library { /// Libraries specified by -l pub libs: Vec, /// Library search paths specified by -L pub link_paths: Vec, /// Library file paths specified without -l pub link_files: Vec, /// Darwin frameworks specified by -framework pub frameworks: Vec, /// Darwin framework search paths specified by -F pub framework_paths: Vec, /// C/C++ header include paths specified by -I pub include_paths: Vec, /// Linker options specified by -Wl pub ld_args: Vec>, /// C/C++ definitions specified by -D pub defines: HashMap>, /// Version specified by .pc file's Version field pub version: String, /// Ensure that this struct can only be created via its private `[Library::new]` constructor. /// Users of this crate can only access the struct via `[Config::probe]`. _priv: (), } /// Represents all reasons `pkg-config` might not succeed or be run at all. pub enum Error { /// Aborted because of `*_NO_PKG_CONFIG` environment variable. /// /// Contains the name of the responsible environment variable. EnvNoPkgConfig(String), /// Detected cross compilation without a custom sysroot. /// /// Ignore the error with `PKG_CONFIG_ALLOW_CROSS=1`, /// which may let `pkg-config` select libraries /// for the host's architecture instead of the target's. CrossCompilation, /// Failed to run `pkg-config`. /// /// Contains the command and the cause. Command { command: String, cause: io::Error }, /// `pkg-config` did not exit sucessfully after probing a library. /// /// Contains the command and output. Failure { command: String, output: Output }, /// `pkg-config` did not exit sucessfully on the first attempt to probe a library. /// /// Contains the command and output. ProbeFailure { name: String, command: String, output: Output, }, #[doc(hidden)] // please don't match on this, we're likely to add more variants over time __Nonexhaustive, } impl error::Error for Error {} impl fmt::Debug for Error { fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> { // Failed `unwrap()` prints Debug representation, but the default debug format lacks helpful instructions for the end users ::fmt(self, f) } } impl fmt::Display for Error { fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> { match *self { Error::EnvNoPkgConfig(ref name) => write!(f, "Aborted because {} is set", name), Error::CrossCompilation => f.write_str( "pkg-config has not been configured to support cross-compilation.\n\ \n\ Install a sysroot for the target platform and configure it via\n\ PKG_CONFIG_SYSROOT_DIR and PKG_CONFIG_PATH, or install a\n\ cross-compiling wrapper for pkg-config and set it via\n\ PKG_CONFIG environment variable.", ), Error::Command { ref command, ref cause, } => { match cause.kind() { io::ErrorKind::NotFound => { let crate_name = std::env::var("CARGO_PKG_NAME").unwrap_or_else(|_| "sys".to_owned()); let instructions = if cfg!(target_os = "macos") || cfg!(target_os = "ios") { "Try `brew install pkg-config` if you have Homebrew.\n" } else if cfg!(unix) { "Try `apt install pkg-config`, or `yum install pkg-config`,\n\ or `pkg install pkg-config`, or `apk add pkgconfig` \ depending on your distribution.\n" } else { "" // There's no easy fix for Windows users }; write!(f, "Could not run `{command}`\n\ The pkg-config command could not be found.\n\ \n\ Most likely, you need to install a pkg-config package for your OS.\n\ {instructions}\ \n\ If you've already installed it, ensure the pkg-config command is one of the\n\ directories in the PATH environment variable.\n\ \n\ If you did not expect this build to link to a pre-installed system library,\n\ then check documentation of the {crate_name} crate for an option to\n\ build the library from source, or disable features or dependencies\n\ that require pkg-config.", command = command, instructions = instructions, crate_name = crate_name) } _ => write!(f, "Failed to run command `{}`, because: {}", command, cause), } } Error::ProbeFailure { ref name, ref command, ref output, } => { write!( f, "`{}` did not exit successfully: {}\nerror: could not find system library '{}' required by the '{}' crate\n", command, output.status, name, env::var("CARGO_PKG_NAME").unwrap_or_default(), )?; format_output(output, f) } Error::Failure { ref command, ref output, } => { write!( f, "`{}` did not exit successfully: {}", command, output.status )?; format_output(output, f) } Error::__Nonexhaustive => panic!(), } } } fn format_output(output: &Output, f: &mut fmt::Formatter) -> fmt::Result { let stdout = String::from_utf8_lossy(&output.stdout); if !stdout.is_empty() { write!(f, "\n--- stdout\n{}", stdout)?; } let stderr = String::from_utf8_lossy(&output.stderr); if !stderr.is_empty() { write!(f, "\n--- stderr\n{}", stderr)?; } Ok(()) } /// Deprecated in favor of the probe_library function #[doc(hidden)] pub fn find_library(name: &str) -> Result { probe_library(name).map_err(|e| e.to_string()) } /// Simple shortcut for using all default options for finding a library. pub fn probe_library(name: &str) -> Result { Config::new().probe(name) } #[doc(hidden)] #[deprecated(note = "use config.target_supported() instance method instead")] pub fn target_supported() -> bool { Config::new().target_supported() } /// Run `pkg-config` to get the value of a variable from a package using /// `--variable`. /// /// The content of `PKG_CONFIG_SYSROOT_DIR` is not injected in paths that are /// returned by `pkg-config --variable`, which makes them unsuitable to use /// during cross-compilation unless specifically designed to be used /// at that time. pub fn get_variable(package: &str, variable: &str) -> Result { let arg = format!("--variable={}", variable); let cfg = Config::new(); let out = cfg.run(package, &[&arg])?; Ok(str::from_utf8(&out).unwrap().trim_end().to_owned()) } impl Config { /// Creates a new set of configuration options which are all initially set /// to "blank". pub fn new() -> Config { Config { statik: None, min_version: Bound::Unbounded, max_version: Bound::Unbounded, extra_args: vec![], print_system_cflags: true, print_system_libs: true, cargo_metadata: true, env_metadata: true, } } /// Indicate whether the `--static` flag should be passed. /// /// This will override the inference from environment variables described in /// the crate documentation. pub fn statik(&mut self, statik: bool) -> &mut Config { self.statik = Some(statik); self } /// Indicate that the library must be at least version `vers`. pub fn atleast_version(&mut self, vers: &str) -> &mut Config { self.min_version = Bound::Included(vers.to_string()); self.max_version = Bound::Unbounded; self } /// Indicate that the library must be equal to version `vers`. pub fn exactly_version(&mut self, vers: &str) -> &mut Config { self.min_version = Bound::Included(vers.to_string()); self.max_version = Bound::Included(vers.to_string()); self } /// Indicate that the library's version must be in `range`. pub fn range_version<'a, R>(&mut self, range: R) -> &mut Config where R: RangeBounds<&'a str>, { self.min_version = match range.start_bound() { Bound::Included(vers) => Bound::Included(vers.to_string()), Bound::Excluded(vers) => Bound::Excluded(vers.to_string()), Bound::Unbounded => Bound::Unbounded, }; self.max_version = match range.end_bound() { Bound::Included(vers) => Bound::Included(vers.to_string()), Bound::Excluded(vers) => Bound::Excluded(vers.to_string()), Bound::Unbounded => Bound::Unbounded, }; self } /// Add an argument to pass to pkg-config. /// /// It's placed after all of the arguments generated by this library. pub fn arg>(&mut self, arg: S) -> &mut Config { self.extra_args.push(arg.as_ref().to_os_string()); self } /// Define whether metadata should be emitted for cargo allowing it to /// automatically link the binary. Defaults to `true`. pub fn cargo_metadata(&mut self, cargo_metadata: bool) -> &mut Config { self.cargo_metadata = cargo_metadata; self } /// Define whether metadata should be emitted for cargo allowing to /// automatically rebuild when environment variables change. Defaults to /// `true`. pub fn env_metadata(&mut self, env_metadata: bool) -> &mut Config { self.env_metadata = env_metadata; self } /// Enable or disable the `PKG_CONFIG_ALLOW_SYSTEM_LIBS` environment /// variable. /// /// This env var is enabled by default. pub fn print_system_libs(&mut self, print: bool) -> &mut Config { self.print_system_libs = print; self } /// Enable or disable the `PKG_CONFIG_ALLOW_SYSTEM_CFLAGS` environment /// variable. /// /// This env var is enabled by default. pub fn print_system_cflags(&mut self, print: bool) -> &mut Config { self.print_system_cflags = print; self } /// Deprecated in favor fo the `probe` function #[doc(hidden)] pub fn find(&self, name: &str) -> Result { self.probe(name).map_err(|e| e.to_string()) } /// Run `pkg-config` to find the library `name`. /// /// This will use all configuration previously set to specify how /// `pkg-config` is run. pub fn probe(&self, name: &str) -> Result { let abort_var_name = format!("{}_NO_PKG_CONFIG", envify(name)); if self.env_var_os(&abort_var_name).is_some() { return Err(Error::EnvNoPkgConfig(abort_var_name)); } else if !self.target_supported() { return Err(Error::CrossCompilation); } let mut library = Library::new(); let output = self .run(name, &["--libs", "--cflags"]) .map_err(|e| match e { Error::Failure { command, output } => Error::ProbeFailure { name: name.to_owned(), command, output, }, other => other, })?; library.parse_libs_cflags(name, &output, self); let output = self.run(name, &["--modversion"])?; library.parse_modversion(str::from_utf8(&output).unwrap()); Ok(library) } /// True if pkg-config is used for the host system, or configured for cross-compilation pub fn target_supported(&self) -> bool { let target = env::var_os("TARGET").unwrap_or_default(); let host = env::var_os("HOST").unwrap_or_default(); // Only use pkg-config in host == target situations by default (allowing an // override). if host == target { return true; } // pkg-config may not be aware of cross-compilation, and require // a wrapper script that sets up platform-specific prefixes. match self.targetted_env_var("PKG_CONFIG_ALLOW_CROSS") { // don't use pkg-config if explicitly disabled Some(ref val) if val == "0" => false, Some(_) => true, None => { // if not disabled, and pkg-config is customized, // then assume it's prepared for cross-compilation self.targetted_env_var("PKG_CONFIG").is_some() || self.targetted_env_var("PKG_CONFIG_SYSROOT_DIR").is_some() } } } /// Deprecated in favor of the top level `get_variable` function #[doc(hidden)] pub fn get_variable(package: &str, variable: &str) -> Result { get_variable(package, variable).map_err(|e| e.to_string()) } fn targetted_env_var(&self, var_base: &str) -> Option { match (env::var("TARGET"), env::var("HOST")) { (Ok(target), Ok(host)) => { let kind = if host == target { "HOST" } else { "TARGET" }; let target_u = target.replace('-', "_"); self.env_var_os(&format!("{}_{}", var_base, target)) .or_else(|| self.env_var_os(&format!("{}_{}", var_base, target_u))) .or_else(|| self.env_var_os(&format!("{}_{}", kind, var_base))) .or_else(|| self.env_var_os(var_base)) } (Err(env::VarError::NotPresent), _) | (_, Err(env::VarError::NotPresent)) => { self.env_var_os(var_base) } (Err(env::VarError::NotUnicode(s)), _) | (_, Err(env::VarError::NotUnicode(s))) => { panic!( "HOST or TARGET environment variable is not valid unicode: {:?}", s ) } } } fn env_var_os(&self, name: &str) -> Option { if self.env_metadata { println!("cargo:rerun-if-env-changed={}", name); } env::var_os(name) } fn is_static(&self, name: &str) -> bool { self.statik.unwrap_or_else(|| self.infer_static(name)) } fn run(&self, name: &str, args: &[&str]) -> Result, Error> { let pkg_config_exe = self.targetted_env_var("PKG_CONFIG"); let fallback_exe = if pkg_config_exe.is_none() { Some(OsString::from("pkgconf")) } else { None }; let exe = pkg_config_exe.unwrap_or_else(|| OsString::from("pkg-config")); let mut cmd = self.command(exe, name, args); match cmd.output().or_else(|e| { if let Some(exe) = fallback_exe { self.command(exe, name, args).output() } else { Err(e) } }) { Ok(output) => { if output.status.success() { Ok(output.stdout) } else { Err(Error::Failure { command: format!("{:?}", cmd), output, }) } } Err(cause) => Err(Error::Command { command: format!("{:?}", cmd), cause, }), } } fn command(&self, exe: OsString, name: &str, args: &[&str]) -> Command { let mut cmd = Command::new(exe); if self.is_static(name) { cmd.arg("--static"); } cmd.args(args).args(&self.extra_args); if let Some(value) = self.targetted_env_var("PKG_CONFIG_PATH") { cmd.env("PKG_CONFIG_PATH", value); } if let Some(value) = self.targetted_env_var("PKG_CONFIG_LIBDIR") { cmd.env("PKG_CONFIG_LIBDIR", value); } if let Some(value) = self.targetted_env_var("PKG_CONFIG_SYSROOT_DIR") { cmd.env("PKG_CONFIG_SYSROOT_DIR", value); } if self.print_system_libs { cmd.env("PKG_CONFIG_ALLOW_SYSTEM_LIBS", "1"); } if self.print_system_cflags { cmd.env("PKG_CONFIG_ALLOW_SYSTEM_CFLAGS", "1"); } cmd.arg(name); match self.min_version { Bound::Included(ref version) => { cmd.arg(&format!("{} >= {}", name, version)); } Bound::Excluded(ref version) => { cmd.arg(&format!("{} > {}", name, version)); } _ => (), } match self.max_version { Bound::Included(ref version) => { cmd.arg(&format!("{} <= {}", name, version)); } Bound::Excluded(ref version) => { cmd.arg(&format!("{} < {}", name, version)); } _ => (), } cmd } fn print_metadata(&self, s: &str) { if self.cargo_metadata { println!("cargo:{}", s); } } fn infer_static(&self, name: &str) -> bool { let name = envify(name); if self.env_var_os(&format!("{}_STATIC", name)).is_some() { true } else if self.env_var_os(&format!("{}_DYNAMIC", name)).is_some() { false } else if self.env_var_os("PKG_CONFIG_ALL_STATIC").is_some() { true } else if self.env_var_os("PKG_CONFIG_ALL_DYNAMIC").is_some() { false } else { false } } } // Implement Default manualy since Bound does not implement Default. impl Default for Config { fn default() -> Config { Config { statik: None, min_version: Bound::Unbounded, max_version: Bound::Unbounded, extra_args: vec![], print_system_cflags: false, print_system_libs: false, cargo_metadata: false, env_metadata: false, } } } impl Library { fn new() -> Library { Library { libs: Vec::new(), link_paths: Vec::new(), link_files: Vec::new(), include_paths: Vec::new(), ld_args: Vec::new(), frameworks: Vec::new(), framework_paths: Vec::new(), defines: HashMap::new(), version: String::new(), _priv: (), } } /// Extract the &str to pass to cargo:rustc-link-lib from a filename (just the file name, not including directories) /// using target-specific logic. fn extract_lib_from_filename<'a>(target: &str, filename: &'a str) -> Option<&'a str> { fn test_suffixes<'b>(filename: &'b str, suffixes: &[&str]) -> Option<&'b str> { for suffix in suffixes { if filename.ends_with(suffix) { return Some(&filename[..filename.len() - suffix.len()]); } } None } let prefix = "lib"; if target.contains("msvc") { // According to link.exe documentation: // https://learn.microsoft.com/en-us/cpp/build/reference/link-input-files?view=msvc-170 // // LINK doesn't use file extensions to make assumptions about the contents of a file. // Instead, LINK examines each input file to determine what kind of file it is. // // However, rustc appends `.lib` to the string it receives from the -l command line argument, // which it receives from Cargo via cargo:rustc-link-lib: // https://github.com/rust-lang/rust/blob/657f246812ab2684e3c3954b1c77f98fd59e0b21/compiler/rustc_codegen_ssa/src/back/linker.rs#L828 // https://github.com/rust-lang/rust/blob/657f246812ab2684e3c3954b1c77f98fd59e0b21/compiler/rustc_codegen_ssa/src/back/linker.rs#L843 // So the only file extension that works for MSVC targets is `.lib` return test_suffixes(filename, &[".lib"]); } else if target.contains("windows") && target.contains("gnu") { // GNU targets for Windows, including gnullvm, use `LinkerFlavor::Gcc` internally in rustc, // which tells rustc to use the GNU linker. rustc does not prepend/append to the string it // receives via the -l command line argument before passing it to the linker: // https://github.com/rust-lang/rust/blob/657f246812ab2684e3c3954b1c77f98fd59e0b21/compiler/rustc_codegen_ssa/src/back/linker.rs#L446 // https://github.com/rust-lang/rust/blob/657f246812ab2684e3c3954b1c77f98fd59e0b21/compiler/rustc_codegen_ssa/src/back/linker.rs#L457 // GNU ld can work with more types of files than just the .lib files that MSVC's link.exe needs. // GNU ld will prepend the `lib` prefix to the filename if necessary, so it is okay to remove // the `lib` prefix from the filename. The `.a` suffix *requires* the `lib` prefix. // https://sourceware.org/binutils/docs-2.39/ld.html#index-direct-linking-to-a-dll if filename.starts_with(prefix) { let filename = &filename[prefix.len()..]; return test_suffixes(filename, &[".dll.a", ".dll", ".lib", ".a"]); } else { return test_suffixes(filename, &[".dll.a", ".dll", ".lib"]); } } else if target.contains("apple") { if filename.starts_with(prefix) { let filename = &filename[prefix.len()..]; return test_suffixes(filename, &[".a", ".so", ".dylib"]); } return None; } else { if filename.starts_with(prefix) { let filename = &filename[prefix.len()..]; return test_suffixes(filename, &[".a", ".so"]); } return None; } } fn parse_libs_cflags(&mut self, name: &str, output: &[u8], config: &Config) { let mut is_msvc = false; let target = env::var("TARGET"); if let Ok(target) = &target { if target.contains("msvc") { is_msvc = true; } } let system_roots = if cfg!(target_os = "macos") { vec![PathBuf::from("/Library"), PathBuf::from("/System")] } else { let sysroot = config .env_var_os("PKG_CONFIG_SYSROOT_DIR") .or_else(|| config.env_var_os("SYSROOT")) .map(PathBuf::from); if cfg!(target_os = "windows") { if let Some(sysroot) = sysroot { vec![sysroot] } else { vec![] } } else { vec![sysroot.unwrap_or_else(|| PathBuf::from("/usr"))] } }; let mut dirs = Vec::new(); let statik = config.is_static(name); let words = split_flags(output); // Handle single-character arguments like `-I/usr/include` let parts = words .iter() .filter(|l| l.len() > 2) .map(|arg| (&arg[0..2], &arg[2..])); for (flag, val) in parts { match flag { "-L" => { let meta = format!("rustc-link-search=native={}", val); config.print_metadata(&meta); dirs.push(PathBuf::from(val)); self.link_paths.push(PathBuf::from(val)); } "-F" => { let meta = format!("rustc-link-search=framework={}", val); config.print_metadata(&meta); self.framework_paths.push(PathBuf::from(val)); } "-I" => { self.include_paths.push(PathBuf::from(val)); } "-l" => { // These are provided by the CRT with MSVC if is_msvc && ["m", "c", "pthread"].contains(&val) { continue; } if statik && is_static_available(val, &system_roots, &dirs) { let meta = format!("rustc-link-lib=static={}", val); config.print_metadata(&meta); } else { let meta = format!("rustc-link-lib={}", val); config.print_metadata(&meta); } self.libs.push(val.to_string()); } "-D" => { let mut iter = val.split('='); self.defines.insert( iter.next().unwrap().to_owned(), iter.next().map(|s| s.to_owned()), ); } _ => {} } } // Handle multi-character arguments with space-separated value like `-framework foo` let mut iter = words.iter().flat_map(|arg| { if arg.starts_with("-Wl,") { arg[4..].split(',').collect() } else { vec![arg.as_ref()] } }); while let Some(part) = iter.next() { match part { "-framework" => { if let Some(lib) = iter.next() { let meta = format!("rustc-link-lib=framework={}", lib); config.print_metadata(&meta); self.frameworks.push(lib.to_string()); } } "-isystem" | "-iquote" | "-idirafter" => { if let Some(inc) = iter.next() { self.include_paths.push(PathBuf::from(inc)); } } _ => { let path = std::path::Path::new(part); if path.is_file() { // Cargo doesn't have a means to directly specify a file path to link, // so split up the path into the parent directory and library name. // TODO: pass file path directly when link-arg library type is stabilized // https://github.com/rust-lang/rust/issues/99427 if let (Some(dir), Some(file_name), Ok(target)) = (path.parent(), path.file_name(), &target) { match Self::extract_lib_from_filename( target, &file_name.to_string_lossy(), ) { Some(lib_basename) => { let link_search = format!("rustc-link-search={}", dir.display()); config.print_metadata(&link_search); let link_lib = format!("rustc-link-lib={}", lib_basename); config.print_metadata(&link_lib); self.link_files.push(PathBuf::from(path)); } None => { println!("cargo:warning=File path {} found in pkg-config file for {}, but could not extract library base name to pass to linker command line", path.display(), name); } } } } } } } let linker_options = words.iter().filter(|arg| arg.starts_with("-Wl,")); for option in linker_options { let mut pop = false; let mut ld_option = vec![]; for subopt in option[4..].split(',') { if pop { pop = false; continue; } if subopt == "-framework" { pop = true; continue; } ld_option.push(subopt); } let meta = format!("rustc-link-arg=-Wl,{}", ld_option.join(",")); config.print_metadata(&meta); self.ld_args .push(ld_option.into_iter().map(String::from).collect()); } } fn parse_modversion(&mut self, output: &str) { self.version.push_str(output.lines().next().unwrap().trim()); } } fn envify(name: &str) -> String { name.chars() .map(|c| c.to_ascii_uppercase()) .map(|c| if c == '-' { '_' } else { c }) .collect() } /// System libraries should only be linked dynamically fn is_static_available(name: &str, system_roots: &[PathBuf], dirs: &[PathBuf]) -> bool { let libname = format!("lib{}.a", name); dirs.iter().any(|dir| { !system_roots.iter().any(|sys| dir.starts_with(sys)) && dir.join(&libname).exists() }) } /// Split output produced by pkg-config --cflags and / or --libs into separate flags. /// /// Backslash in output is used to preserve literal meaning of following byte. Different words are /// separated by unescaped space. Other whitespace characters generally should not occur unescaped /// at all, apart from the newline at the end of output. For compatibility with what others /// consumers of pkg-config output would do in this scenario, they are used here for splitting as /// well. fn split_flags(output: &[u8]) -> Vec { let mut word = Vec::new(); let mut words = Vec::new(); let mut escaped = false; for &b in output { match b { _ if escaped => { escaped = false; word.push(b); } b'\\' => escaped = true, b'\t' | b'\n' | b'\r' | b' ' => { if !word.is_empty() { words.push(String::from_utf8(word).unwrap()); word = Vec::new(); } } _ => word.push(b), } } if !word.is_empty() { words.push(String::from_utf8(word).unwrap()); } words } #[cfg(test)] mod tests { use super::*; #[test] #[cfg(target_os = "macos")] fn system_library_mac_test() { use std::path::Path; let system_roots = vec![PathBuf::from("/Library"), PathBuf::from("/System")]; assert!(!is_static_available( "PluginManager", &system_roots, &[PathBuf::from("/Library/Frameworks")] )); assert!(!is_static_available( "python2.7", &system_roots, &[PathBuf::from( "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/config" )] )); assert!(!is_static_available( "ffi_convenience", &system_roots, &[PathBuf::from( "/Library/Ruby/Gems/2.0.0/gems/ffi-1.9.10/ext/ffi_c/libffi-x86_64/.libs" )] )); // Homebrew is in /usr/local, and it's not a part of the OS if Path::new("/usr/local/lib/libpng16.a").exists() { assert!(is_static_available( "png16", &system_roots, &[PathBuf::from("/usr/local/lib")] )); let libpng = Config::new() .range_version("1".."99") .probe("libpng16") .unwrap(); assert!(libpng.version.find('\n').is_none()); } } #[test] #[cfg(target_os = "linux")] fn system_library_linux_test() { assert!(!is_static_available( "util", &[PathBuf::from("/usr")], &[PathBuf::from("/usr/lib/x86_64-linux-gnu")] )); assert!(!is_static_available( "dialog", &[PathBuf::from("/usr")], &[PathBuf::from("/usr/lib")] )); } fn test_library_filename(target: &str, filename: &str) { assert_eq!( Library::extract_lib_from_filename(target, filename), Some("foo") ); } #[test] fn link_filename_linux() { let target = "x86_64-unknown-linux-gnu"; test_library_filename(target, "libfoo.a"); test_library_filename(target, "libfoo.so"); } #[test] fn link_filename_apple() { let target = "x86_64-apple-darwin"; test_library_filename(target, "libfoo.a"); test_library_filename(target, "libfoo.so"); test_library_filename(target, "libfoo.dylib"); } #[test] fn link_filename_msvc() { let target = "x86_64-pc-windows-msvc"; // static and dynamic libraries have the same .lib suffix test_library_filename(target, "foo.lib"); } #[test] fn link_filename_mingw() { let target = "x86_64-pc-windows-gnu"; test_library_filename(target, "foo.lib"); test_library_filename(target, "libfoo.a"); test_library_filename(target, "foo.dll"); test_library_filename(target, "foo.dll.a"); } } pkg-config-0.3.27/tests/escape.pc000064400000000000000000000003151046102023000146660ustar 00000000000000Name: Escape Version: 4.2.0 Description: Escape utility library Libs: -Llink\ path\ with\ spaces Cflags: -Iinclude\ path\ with\ spaces -DA=\"escaped\ string\'\ literal\" -DB=ESCAPED\ IDENTIFIER -DFOX=🦊 pkg-config-0.3.27/tests/foo.pc000064400000000000000000000006041046102023000142120ustar 00000000000000prefix=/usr exec_prefix=${prefix} libdir=${exec_prefix}/lib includedir=${prefix}/include/valgrind arch=amd64 os=linux platform=amd64-linux valt_load_address=0x38000000 Name: Valgrind Description: A dynamic binary instrumentation framework Version: 3.10.0.SVN Requires: Libs: -L${libdir}/valgrind -lcoregrind-amd64-linux -lvex-amd64-linux -lgcc Cflags: -I${includedir} -isystem /usr/foo pkg-config-0.3.27/tests/framework.pc000064400000000000000000000006321046102023000154250ustar 00000000000000prefix=/usr exec_prefix=${prefix} libdir=${exec_prefix}/lib includedir=${prefix}/include/valgrind arch=amd64 os=linux platform=amd64-linux valt_load_address=0x38000000 Name: Valgrind Description: A dynamic binary instrumentation framework Version: 3.10.0.SVN Requires: Libs: -F${libdir} -framework foo -Wl,-framework,bar -Wl,-framework -Wl,baz -Wl,-framework,foobar,-framework,foobaz Cflags: -I${includedir} pkg-config-0.3.27/tests/rpath.pc000064400000000000000000000002441046102023000145450ustar 00000000000000prefix=/usr/local Name: rpath Version: 4.2.0 Description: RPath example library Libs: -L${prefix}/lib -Wl,-rpath,${prefix}/lib -lrpath Cflags: -I${prefix}/include pkg-config-0.3.27/tests/test.rs000064400000000000000000000161501046102023000144330ustar 00000000000000extern crate pkg_config; #[macro_use] extern crate lazy_static; use pkg_config::Error; use std::env; use std::path::PathBuf; use std::sync::Mutex; lazy_static! { static ref LOCK: Mutex<()> = Mutex::new(()); } fn reset() { for (k, _) in env::vars() { if k.contains("DYNAMIC") || k.contains("STATIC") || k.contains("PKG_CONFIG_ALLOW_CROSS") || k.contains("PKG_CONFIG_SYSROOT_DIR") || k.contains("FOO_NO_PKG_CONFIG") { env::remove_var(&k); } } env::remove_var("TARGET"); env::remove_var("HOST"); env::set_var("PKG_CONFIG_PATH", env::current_dir().unwrap().join("tests")); } fn find(name: &str) -> Result { pkg_config::probe_library(name) } #[test] fn cross_disabled() { let _g = LOCK.lock(); reset(); env::set_var("TARGET", "foo"); env::set_var("HOST", "bar"); match find("foo") { Err(Error::CrossCompilation) => {} x => panic!("Error::CrossCompilation expected, found `{:?}`", x), } } #[test] fn cross_enabled() { let _g = LOCK.lock(); reset(); env::set_var("TARGET", "foo"); env::set_var("HOST", "bar"); env::set_var("PKG_CONFIG_ALLOW_CROSS", "1"); find("foo").unwrap(); } #[test] fn cross_enabled_if_customized() { let _g = LOCK.lock(); reset(); env::set_var("TARGET", "foo"); env::set_var("HOST", "bar"); env::set_var("PKG_CONFIG_SYSROOT_DIR", "/tmp/cross-test"); find("foo").unwrap(); } #[test] fn cross_disabled_if_customized() { let _g = LOCK.lock(); reset(); env::set_var("TARGET", "foo"); env::set_var("HOST", "bar"); env::set_var("PKG_CONFIG_ALLOW_CROSS", "0"); env::set_var("PKG_CONFIG_SYSROOT_DIR", "/tmp/cross-test"); match find("foo") { Err(Error::CrossCompilation) => {} _ => panic!("expected CrossCompilation failure"), } } #[test] fn package_disabled() { let _g = LOCK.lock(); reset(); env::set_var("FOO_NO_PKG_CONFIG", "1"); match find("foo") { Err(Error::EnvNoPkgConfig(name)) => assert_eq!(name, "FOO_NO_PKG_CONFIG"), x => panic!("Error::EnvNoPkgConfig expected, found `{:?}`", x), } } #[test] fn output_ok() { let _g = LOCK.lock(); reset(); let lib = find("foo").unwrap(); assert!(lib.libs.contains(&"gcc".to_string())); assert!(lib.libs.contains(&"coregrind-amd64-linux".to_string())); assert!(lib.link_paths.contains(&PathBuf::from("/usr/lib/valgrind"))); assert!(lib .include_paths .contains(&PathBuf::from("/usr/include/valgrind"))); assert!(lib.include_paths.contains(&PathBuf::from("/usr/foo"))); } #[test] fn escapes() { let _g = LOCK.lock(); reset(); let lib = find("escape").unwrap(); assert!(lib .include_paths .contains(&PathBuf::from("include path with spaces"))); assert!(lib .link_paths .contains(&PathBuf::from("link path with spaces"))); assert_eq!( lib.defines.get("A"), Some(&Some("\"escaped string' literal\"".to_owned())) ); assert_eq!( lib.defines.get("B"), Some(&Some("ESCAPED IDENTIFIER".to_owned())) ); assert_eq!(lib.defines.get("FOX"), Some(&Some("🦊".to_owned()))); } #[test] fn framework() { let _g = LOCK.lock(); reset(); let lib = find("framework").unwrap(); assert!(lib.frameworks.contains(&"foo".to_string())); assert!(lib.frameworks.contains(&"bar".to_string())); assert!(lib.frameworks.contains(&"baz".to_string())); assert!(lib.frameworks.contains(&"foobar".to_string())); assert!(lib.frameworks.contains(&"foobaz".to_string())); assert!(lib.framework_paths.contains(&PathBuf::from("/usr/lib"))); } #[test] fn get_variable() { let _g = LOCK.lock(); reset(); let prefix = pkg_config::get_variable("foo", "prefix").unwrap(); assert_eq!(prefix, "/usr"); } #[test] fn version() { let _g = LOCK.lock(); reset(); assert_eq!(&find("foo").unwrap().version[..], "3.10.0.SVN"); } #[test] fn atleast_version_ok() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .atleast_version("3.10") .probe("foo") .unwrap(); } #[test] #[should_panic] fn atleast_version_ng() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .atleast_version("3.11") .probe("foo") .unwrap(); } #[test] fn exactly_version_ok() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .exactly_version("3.10.0.SVN") .probe("foo") .unwrap(); } #[test] #[should_panic] fn exactly_version_ng() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .exactly_version("3.10.0") .probe("foo") .unwrap(); } #[test] fn range_version_range_ok() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version("4.2.0".."4.4.0") .probe("escape") .unwrap(); } #[test] #[should_panic] fn range_version_range_ng() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version("4.0.0".."4.2.0") .probe("escape") .unwrap(); } #[test] fn range_version_range_inclusive_ok() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version("4.0.0"..="4.2.0") .probe("escape") .unwrap(); } #[test] #[should_panic] fn range_version_range_inclusive_ng() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version("3.8.0"..="4.0.0") .probe("escape") .unwrap(); } #[test] fn range_version_range_from_ok() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version("4.0.0"..) .probe("escape") .unwrap(); } #[test] #[should_panic] fn range_version_range_from_ng() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version("4.4.0"..) .probe("escape") .unwrap(); } #[test] fn range_version_range_to_ok() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version(.."4.4.0") .probe("escape") .unwrap(); } #[test] #[should_panic] fn range_version_range_to_ng() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version(.."4.2.0") .probe("escape") .unwrap(); } #[test] fn range_version_range_to_inclusive_ok() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version(..="4.2.0") .probe("escape") .unwrap(); } #[test] #[should_panic] fn range_version_range_to_inclusive_ng() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version(..="4.0.0") .probe("escape") .unwrap(); } #[test] fn range_version_full() { let _g = LOCK.lock(); reset(); pkg_config::Config::new() .range_version(..) .probe("escape") .unwrap(); } #[test] fn rpath() { let _g = LOCK.lock(); reset(); let lib = find("rpath").unwrap(); assert!(lib .ld_args .contains(&vec!["-rpath".to_string(), "/usr/local/lib".to_string(),])); }