feature-gate most Nix functions

Using features reduces build time and size for consumer crates.  By
default all features are enabled.

1 files changed, 10 insertions, 2 deletions

diff --git a/src/pty.rs b/src/pty.rs
index facc9aaf..a104a69c 100644
--- a/src/pty.rs
+++ b/src/pty.rs
@@ -9,8 +9,9 @@ use std::mem;
 use std::os::unix::prelude::*;
 
 use crate::sys::termios::Termios;
-use crate::unistd::{self, ForkResult, Pid};
-use crate::{Result, fcntl};
+#[cfg(feature = "process")]
+use crate::unistd::{ForkResult, Pid};
+use crate::{Result, fcntl, unistd};
 use crate::errno::Errno;
 
 /// Representation of a master/slave pty pair
@@ -25,6 +26,8 @@ pub struct OpenptyResult {
     pub slave: RawFd,
 }
 
+feature! {
+#![feature = "process"]
 /// Representation of a master with a forked pty
 ///
 /// This is returned by `forkpty`. Note that this type does *not* implement `Drop`, so the user
@@ -36,6 +39,7 @@ pub struct ForkptyResult {
     /// Metadata about forked process
     pub fork_result: ForkResult,
 }
+}
 
 
 /// Representation of the Master device in a master/slave pty pair
@@ -188,6 +192,7 @@ pub unsafe fn ptsname(fd: &PtyMaster) -> Result<String> {
 /// This value is useful for opening the slave ptty once the master has already been opened with
 /// `posix_openpt()`.
 #[cfg(any(target_os = "android", target_os = "linux"))]
+#[cfg_attr(docsrs, doc(cfg(all())))]
 #[inline]
 pub fn ptsname_r(fd: &PtyMaster) -> Result<String> {
     let mut name_buf = Vec::<libc::c_char>::with_capacity(64);
@@ -294,6 +299,8 @@ pub fn openpty<'a, 'b, T: Into<Option<&'a Winsize>>, U: Into<Option<&'b Termios>
     }
 }
 
+feature! {
+#![feature = "process"]
 /// Create a new pseudoterminal, returning the master file descriptor and forked pid.
 /// in `ForkptyResult`
 /// (see [`forkpty`](https://man7.org/linux/man-pages/man3/forkpty.3.html)).
@@ -346,3 +353,4 @@ pub unsafe fn forkpty<'a, 'b, T: Into<Option<&'a Winsize>>, U: Into<Option<&'b T
         fork_result,
     })
 }
+}