Update libc crate to 0.2.55

This change updates the libc crate to version 0.2.55.

Import subrepo libc/:libc at caf17a0641d29dc624621177f5756804dd180c13

1 files changed, 20 insertions, 3 deletions

diff --git a/libc/src/windows/mod.rs b/libc/src/windows/mod.rs
index 4bea459..70ca675 100644
--- a/libc/src/windows/mod.rs
+++ b/libc/src/windows/mod.rs
@@ -47,7 +47,12 @@ cfg_if! {
 pub type off_t = i32;
 pub type dev_t = u32;
 pub type ino_t = u16;
+#[cfg_attr(feature = "extra_traits", derive(Debug))]
 pub enum timezone {}
+impl ::Copy for timezone {}
+impl ::Clone for timezone {
+    fn clone(&self) -> timezone { *self }
+}
 pub type time64_t = i64;
 
 pub type SOCKET = ::uintptr_t;
@@ -201,8 +206,18 @@ pub const SIG_ERR: ::c_int = -1;
 #[link(name = "libcmt", cfg(target_feature = "crt-static"))]
 extern {}
 
+#[cfg_attr(feature = "extra_traits", derive(Debug))]
 pub enum FILE {}
+impl ::Copy for FILE {}
+impl ::Clone for FILE {
+    fn clone(&self) -> FILE { *self }
+}
+#[cfg_attr(feature = "extra_traits", derive(Debug))]
 pub enum fpos_t {} // TODO: fill this out with a struct
+impl ::Copy for fpos_t {}
+impl ::Clone for fpos_t {
+    fn clone(&self) -> fpos_t { *self }
+}
 
 extern {
     pub fn isalnum(c: c_int) -> c_int;
@@ -419,13 +434,15 @@ extern "system" {
 }
 
 cfg_if! {
-    if #[cfg(core_cvoid)] {
-        pub use core::ffi::c_void;
+    if #[cfg(libc_core_cvoid)] {
+        pub use ::ffi::c_void;
     } else {
         // Use repr(u8) as LLVM expects `void*` to be the same as `i8*` to help
         // enable more optimization opportunities around it recognizing things
         // like malloc/free.
         #[repr(u8)]
+        #[allow(missing_copy_implementations)]
+        #[allow(missing_debug_implementations)]
         pub enum c_void {
             // Two dummy variants so the #[repr] attribute can be used.
             #[doc(hidden)]
@@ -446,4 +463,4 @@ cfg_if! {
     } else {
         // Unknown target_env
     }
-}
\ No newline at end of file
+}