Allow set_errno on Linux

Artoria2e5 · Artoria2e5 · commit e84a8cacbfe1 · 2021-07-10T20:12:03.000+08:00
diff --git a/library/std/src/sys/unix/os.rs b/library/std/src/sys/unix/os.rs
@@ -73,7 +73,7 @@ pub fn errno() -> i32 {
 }
 
 /// Sets the platform-specific value of errno
-#[cfg(all(not(target_os = "linux"), not(target_os = "dragonfly"), not(target_os = "vxworks")))] // needed for readdir and syscall!
+#[cfg(all(not(target_os = "linux"), not(target_os = "dragonfly")))] // needed for readdir and syscall!
 #[allow(dead_code)] // but not all target cfgs actually end up using it
 pub fn set_errno(e: i32) {
     unsafe { *errno_location() = e as c_int }

Original file line number	Diff line number	Diff line change
`@@ -73,7 +73,7 @@ pub fn errno() -> i32 {`
`73`	`73`	`}`
`74`	`74`
`75`	`75`	`/// Sets the platform-specific value of errno`
`76`		`-#[cfg(all(not(target_os = "linux"), not(target_os = "dragonfly"), not(target_os = "vxworks")))] // needed for readdir and syscall!`
	`76`	`+#[cfg(all(not(target_os = "linux"), not(target_os = "dragonfly")))] // needed for readdir and syscall!`
`77`	`77`	`#[allow(dead_code)] // but not all target cfgs actually end up using it`
`78`	`78`	`pub fn set_errno(e: i32) {`
`79`	`79`	`unsafe { *errno_location() = e as c_int }`