Fix warnings

Author: jackpot51

newlib/libc/sys/redox/src/file.rs

@@ -8,7 +8,7 @@ pub const PATH_MAX: usize = 4096;
 
 libc_fn!(unsafe access(path: *mut c_char, _amode: c_int) -> Result<c_int> {
     // XXX amode
-    let fd = ::RawFile::open(::cstr_to_slice(path), O_CLOEXEC | O_STAT)?;
+    ::RawFile::open(::cstr_to_slice(path), O_CLOEXEC | O_STAT)?;
     Ok(0)
 });
 
@@ -43,7 +43,7 @@ libc_fn!(unsafe _lseek(file: c_int, ptr: off_t, dir: c_int) -> Result<off_t> {
 
 libc_fn!(unsafe mkdir(path: *mut c_char, mode: mode_t) -> Result<c_int> {
     let flags = O_CREAT | O_EXCL | O_CLOEXEC | O_DIRECTORY | (mode as usize & 0o777);
-    let fd = ::RawFile::open(::cstr_to_slice(path), flags)?;
+    ::RawFile::open(::cstr_to_slice(path), flags)?;
     Ok(0)
 });
 

newlib/libc/sys/redox/src/unimpl.rs

@@ -58,19 +58,19 @@ libc_fn!(unsafe vfork() -> c_int {
     ::process::_fork()
 });
 
-libc_fn!(ttyname(fd: c_int) -> Result<*const c_char> {
+libc_fn!(ttyname(_fd: c_int) -> Result<*const c_char> {
     UNIMPL!(ttyname, EINVAL)
 });
 
-libc_fn!(fpathconf(fildes: c_int, name: c_int) -> Result<c_long> {
+libc_fn!(fpathconf(_fildes: c_int, _name: c_int) -> Result<c_long> {
     UNIMPL!(fpathconf, EINVAL)
 });
 
 libc_fn!(getlogin() -> Result<*const c_char> {
     UNIMPL!(getlogin, EINVAL)
 });
 
-libc_fn!(unsafe select(nfds: c_int, readfds: *mut fd_set, writefds: *mut fd_set, errorfds: *mut fd_set, _timeout: *mut timeval) -> Result<c_int> {
+libc_fn!(unsafe select(_nfds: c_int, readfds: *mut fd_set, writefds: *mut fd_set, errorfds: *mut fd_set, _timeout: *mut timeval) -> Result<c_int> {
     use ::types::{FD_SETSIZE, NFDBITS};
     let mut ret = 0;
     syscall::write(2, b"unimplemented: select()\n").unwrap();