Mercurial > crates > nonstick
diff libpam-sys/src/lib.rs @ 134:6c1e1bdb4164
Use standard #[cfg] directives rather than custom proc macros.
Instead of having to do a bunch of custom parsing and other logic
that tools often choke on, this change introduces an easy way
to depend upon custom #[cfg]s provided by the libpam-sys crate.
| author | Paul Fisher <paul@pfish.zone> |
|---|---|
| date | Thu, 03 Jul 2025 11:03:36 -0400 |
| parents | c77846f3a979 |
| children |
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--- a/libpam-sys/src/lib.rs Wed Jul 02 03:33:09 2025 -0400 +++ b/libpam-sys/src/lib.rs Thu Jul 03 11:03:36 2025 -0400 @@ -2,54 +2,12 @@ //! //! ## PAM implementation //! -#![doc = concat!("This documentation was built for the **", __pam_impl_name__!(), "** implementation.")] - -use libpam_sys_impls::{__pam_impl_enum__, __pam_impl_name__}; - -/// A `cfg`-like attribute macro for code specific to one PAM implementation. -/// -/// Different versions of PAM export different functions and have some -/// meaningful internal implementation differences, like the way `pam_conv` -/// is handled (see [the Linux-PAM man page for details][man7]). -/// -/// This macro will let you figure out which PAM you're compiling -/// (and eventually running) against so you can make those critical changes. -/// -/// The implementation names are the same as those in the [`PamImpl`] enum. -/// -/// ``` -/// use libpam_sys::cfg_pam_impl; -/// -/// #[cfg_pam_impl("Sun")] -/// fn do_something() { /* Illumos/Solaris-only code */ } -/// -/// #[cfg_pam_impl(not("Sun"))] -/// fn do_something() { /* non-Illumos code */ } -/// -/// #[cfg_pam_impl(any("LinuxPam", "XSso"))] -/// fn do_something_else() { /* Linux-PAM or X/SSO-spec PAM */ } -/// -/// #[cfg_pam_impl(not(any("Sun", "OpenPam")))] -/// fn do_a_third_thing() { /* Neither Sun nor OpenPAM */ } -/// -/// #[cfg_pam_impl(any())] -/// fn this_will_never_build() { /* why would you do this? */ } -/// -/// #[cfg_pam_impl(not(any()))] -/// fn this_will_always_build() { /* I, sure, whatever, you do you. */ } -/// ``` -/// -/// [man7]: https://man7.org/linux/man-pages/man3/pam_conv.3.html -#[doc(inline)] -pub use libpam_sys_impls::cfg_pam_impl; +#![doc = concat!("This documentation was built for the **", env!("LIBPAMSYS_IMPL"), "** implementation.")] mod constants; mod ffi; pub mod helpers; +pub mod pam_impl; #[doc(inline)] -pub use crate::{constants::*, ffi::*}; - -// Looking for the actual code defining this enum? -// It's in the build.rs file for libpam_sys_impls. -__pam_impl_enum__!(#[non_exhaustive]); +pub use crate::{constants::*, ffi::*, pam_impl::*};