Update libc crate to 0.2.57

This change updates the libc crate to version 0.2.57.

Import subrepo libc/:libc at cdc48ea36d8d2890dba38e8f779001e6855339a2

1 files changed, 8 insertions, 0 deletions

diff --git a/libc/src/unix/redox/mod.rs b/libc/src/unix/redox/mod.rs
index 4bb1ab4..388918e 100644
--- a/libc/src/unix/redox/mod.rs
+++ b/libc/src/unix/redox/mod.rs
@@ -534,6 +534,12 @@ cfg_if! {
 }
 
 extern {
+    pub fn getrlimit(resource: ::c_int, rlim: *mut ::rlimit) -> ::c_int;
+    pub fn setrlimit(resource: ::c_int, rlim: *const ::rlimit) -> ::c_int;
+
+    pub fn strerror_r(errnum: ::c_int, buf: *mut c_char,
+                      buflen: ::size_t) -> ::c_int;
+
     // malloc.h
     pub fn memalign(align: ::size_t, size: ::size_t) -> *mut ::c_void;
 
@@ -584,5 +590,7 @@ extern {
                   iovcnt: ::c_int) -> ::ssize_t;
 
     // time.h
+    pub fn gettimeofday(tp: *mut ::timeval,
+                        tz: *mut ::timezone) -> ::c_int;
     pub fn clock_gettime(clk_id: ::clockid_t, tp: *mut ::timespec) -> ::c_int;
 }