Add ENOATTR for Linux

Author: PlasmaPower

.travis.yml

@@ -4,6 +4,7 @@ dist: trusty
 services:
   - docker
 install:
+  - [[ $TRAVIS_OS_NAME = "linux" ]] && sudo apt-get install libattr1-dev
   - if [ -z "$NO_ADD" ]; then rustup target add $TARGET; fi
 script:
   - cargo build

libc-test/build.rs

@@ -171,6 +171,7 @@ fn main() {
         if !uclibc {
             // optionally included in uclibc
             cfg.header("sys/xattr.h");
+            cfg.header("attr/xattr.h");
         }
         cfg.header("sys/ipc.h");
         cfg.header("sys/msg.h");
@@ -496,7 +497,7 @@ fn main() {
             // clash so it can't be tested
             "getxattr" | "lgetxattr" | "fgetxattr" | "setxattr" | "lsetxattr" | "fsetxattr" |
             "listxattr" | "llistxattr" | "flistxattr" | "removexattr" | "lremovexattr" |
-            "fremovexattr" |
+            "fremovexattr" | "ENOATTR" |
             "backtrace" |
             "sysinfo" | "newlocale" | "duplocale" | "freelocale" | "uselocale" |
             "nl_langinfo_l" | "wcslen" | "wcstombs" if uclibc => true,

src/unix/notbsd/linux/mod.rs

@@ -700,6 +700,8 @@ pub const PR_CAP_AMBIENT_CLEAR_ALL: ::c_int = 4;
 pub const XATTR_CREATE: ::c_int = 0x1;
 pub const XATTR_REPLACE: ::c_int = 0x2;
 
+pub const ENOATTR: ::c_int = ::ENODATA;
+
 f! {
     pub fn CPU_ZERO(cpuset: &mut cpu_set_t) -> () {
         for slot in cpuset.bits.iter_mut() {