# 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).
## [0.3.25] - 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)