Update libc crate to 0.2.45

This change updates the libc crate to version 0.2.45.

Import subrepo libc/:libc at f5636fc618f8e16968b3178196d73c94ad9f7b05

1 files changed, 25 insertions, 5 deletions

diff --git a/libc/src/macros.rs b/libc/src/macros.rs
index 8429442..7720578 100644
--- a/libc/src/macros.rs
+++ b/libc/src/macros.rs
@@ -35,11 +35,11 @@ macro_rules! __cfg_if_apply {
 }
 
 macro_rules! s {
-    ($($(#[$attr:meta])* pub struct $i:ident { $($field:tt)* })*) => ($(
+    ($($(#[$attr:meta])* pub $t:ident $i:ident { $($field:tt)* })*) => ($(
         __item! {
             #[repr(C)]
             $(#[$attr])*
-            pub struct $i { $($field)* }
+            pub $t $i { $($field)* }
         }
         impl ::dox::Copy for $i {}
         impl ::dox::Clone for $i {
@@ -48,17 +48,18 @@ macro_rules! s {
     )*)
 }
 
+#[allow(unused_macros)]
 macro_rules! f {
     ($(pub fn $i:ident($($arg:ident: $argty:ty),*) -> $ret:ty {
         $($body:stmt);*
     })*) => ($(
         #[inline]
-        #[cfg(not(dox))]
+        #[cfg(not(cross_platform_docs))]
         pub unsafe extern fn $i($($arg: $argty),*) -> $ret {
             $($body);*
         }
 
-        #[cfg(dox)]
+        #[cfg(cross_platform_docs)]
         #[allow(dead_code)]
         pub unsafe extern fn $i($($arg: $argty),*) -> $ret {
             loop {}
@@ -67,5 +68,24 @@ macro_rules! f {
 }
 
 macro_rules! __item {
-    ($i:item) => ($i)
+    ($i:item) => {
+        $i
+    };
+}
+
+#[allow(unused_macros)]
+macro_rules! align_const {
+    ($($(#[$attr:meta])* pub const $name:ident : $t1:ty = $t2:ident { $($field:tt)* };)*) => ($(
+        #[cfg(feature = "align")]
+        $(#[$attr])*
+        pub const $name : $t1 = $t2 {
+            $($field)*
+        };
+        #[cfg(not(feature = "align"))]
+        $(#[$attr])*
+        pub const $name : $t1 = $t2 {
+            $($field)*
+            __align: [],
+        };
+    )*)
 }