Use unique errno values.

Author: Xing Xue

libc-test/build.rs

@@ -5571,6 +5571,11 @@ fn test_aix(target: &str) {
         // Skip 'sighandler_t' assignments.
         "SIG_DFL" | "SIG_ERR" | "SIG_IGN" => true,
 
+        // _ALL_SOURCE defines these errno values as aliases of other errno
+        // values, but POSIX requires each errno to be unique. Skip these
+        // values because non-unique values are being used which will
+        // fail the test when _ALL_SOURCE is defined.
+        "EWOULDBLOCK" | "ENOTEMPTY" => true,
         _ => false,
     });
 

libc-test/semver/aix.txt

@@ -253,13 +253,11 @@ ECHOKE
 ECHONL
 ECHOPRT
 ECHRNG
-ECLONEME
 ECONNABORTED
 ECONNREFUSED
 ECONNRESET
 ECORRUPT
 EDEADLK
-EDESTADDREQ
 EDESTADDRREQ
 EDIST
 EDOM

src/unix/aix/mod.rs

@@ -1263,12 +1263,11 @@ pub const ENOLCK: c_int = 49;
 pub const ENOCONNECT: c_int = 50;
 pub const ESTALE: c_int = 52;
 pub const EDIST: c_int = 53;
-pub const EWOULDBLOCK: c_int = EAGAIN;
+pub const EWOULDBLOCK: c_int = 54;
 pub const EINPROGRESS: c_int = 55;
 pub const EALREADY: c_int = 56;
 pub const ENOTSOCK: c_int = 57;
 pub const EDESTADDRREQ: c_int = 58;
-pub const EDESTADDREQ: c_int = EDESTADDRREQ;
 pub const EMSGSIZE: c_int = 59;
 pub const EPROTOTYPE: c_int = 60;
 pub const ENOPROTOOPT: c_int = 61;
@@ -1297,7 +1296,7 @@ pub const EPROCLIM: c_int = 83;
 pub const EUSERS: c_int = 84;
 pub const ELOOP: c_int = 85;
 pub const ENAMETOOLONG: c_int = 86;
-pub const ENOTEMPTY: c_int = EEXIST;
+pub const ENOTEMPTY: c_int = 87;
 pub const EDQUOT: c_int = 88;
 pub const ECORRUPT: c_int = 89;
 pub const ESYSERROR: c_int = 90;
@@ -1320,7 +1319,6 @@ pub const EBADMSG: c_int = 120;
 pub const EPROTO: c_int = 121;
 pub const ENODATA: c_int = 122;
 pub const ENOSTR: c_int = 123;
-pub const ECLONEME: c_int = ERESTART;
 pub const ENOTSUP: c_int = 124;
 pub const EMULTIHOP: c_int = 125;
 pub const ENOLINK: c_int = 126;