Index: include/__errc
===================================================================
--- include/__errc
+++ include/__errc
@@ -46,6 +46,7 @@
     identifier_removed,                 // EIDRM
     illegal_byte_sequence,              // EILSEQ
     inappropriate_io_control_operation, // ENOTTY
+    integrity_check_failed,             // EINTEGRITY
     interrupted,                        // EINTR
     invalid_argument,                   // EINVAL
     invalid_seek,                       // ESPIPE
@@ -143,6 +144,7 @@
     identifier_removed                  = EIDRM,
     illegal_byte_sequence               = EILSEQ,
     inappropriate_io_control_operation  = ENOTTY,
+    integrity_check_failed              = EINTEGRITY,
     interrupted                         = EINTR,
     invalid_argument                    = EINVAL,
     invalid_seek                        = ESPIPE,
Index: include/errno.h
===================================================================
--- include/errno.h
+++ include/errno.h
@@ -33,49 +33,72 @@
 
 #ifdef __cplusplus
 
-#if !defined(EOWNERDEAD) || !defined(ENOTRECOVERABLE)
+#if !defined(EOWNERDEAD) || !defined(ENOTRECOVERABLE) || !defined(EINTEGRITY)
 
 #ifdef ELAST
 
 static const int __elast1 = ELAST+1;
 static const int __elast2 = ELAST+2;
+static const int __elast2 = ELAST+3;
 
 #else
 
 static const int __elast1 = 104;
 static const int __elast2 = 105;
+static const int __elast2 = 106;
 
 #endif
 
-#ifdef ENOTRECOVERABLE
+#if !defined(EOWNERDEAD) && !defined(ENOTRECOVERABLE) && !defined(EINTEGRITY)
+#define ENOTRECOVERABLE __elast1
+#define EOWNERDEAD __elast2
+#define EINTEGRITY __elast3
+#ifdef ELAST
+#undef ELAST
+#define ELAST EINTEGRITY
 
+#elif !defined(EOWNERDEAD) && !defined(ENOTRECOVERABLE) && defined(EINTEGRITY)
+#define ENOTRECOVERABLE __elast1
+#define EOWNERDEAD __elast2
+#ifdef ELAST
+#undef ELAST
+#define ELAST EOWNERDEAD
+
+#elif !defined(EOWNERDEAD) && defined(ENOTRECOVERABLE) && !defined(EINTEGRITY)
 #define EOWNERDEAD __elast1
+#define EINTEGRITY __elast2
+#ifdef ELAST
+#undef ELAST
+#define ELAST EINTEGRITY
 
+#elif !defined(EOWNERDEAD) && defined(ENOTRECOVERABLE) && defined(EINTEGRITY)
+#define EOWNERDEAD __elast1
 #ifdef ELAST
 #undef ELAST
 #define ELAST EOWNERDEAD
-#endif
 
-#elif defined(EOWNERDEAD)
+#elif defined(EOWNERDEAD) && !defined(ENOTRECOVERABLE) && !defined(EINTEGRITY)
+#define ENOTRECOVERABLE __elast1
+#define EINTEGRITY __elast2
+#ifdef ELAST
+#undef ELAST
+#define ELAST EINTEGRITY
 
+#elif defined(EOWNERDEAD) && !defined(ENOTRECOVERABLE) && defined(EINTEGRITY)
 #define ENOTRECOVERABLE __elast1
 #ifdef ELAST
 #undef ELAST
 #define ELAST ENOTRECOVERABLE
-#endif
 
-#else  // defined(EOWNERDEAD)
-
-#define EOWNERDEAD __elast1
-#define ENOTRECOVERABLE __elast2
+#elif defined(EOWNERDEAD) && defined(ENOTRECOVERABLE) && !defined(EINTEGRITY)
+#define EINTEGRITY __elast1
 #ifdef ELAST
 #undef ELAST
-#define ELAST ENOTRECOVERABLE
-#endif
+#define ELAST EINTEGRITY
 
-#endif  // defined(EOWNERDEAD)
+#endif // !defined(OWNERDEAD) && !defined(NOTRECOVERABLE) && !defined(INTEGRITY)
 
-#endif  // !defined(EOWNERDEAD) || !defined(ENOTRECOVERABLE)
+#endif // !defined(OWNERDEAD) || !defined(NOTRECOVERABLE) || !defined(INTEGRITY)
 
 //  supply errno values likely to be missing, particularly on Windows
 
@@ -391,6 +414,10 @@
 
 #ifndef EMLINK
 #define EMLINK 9979
+#endif
+
+#ifndef EINTEGRITY
+#define EINTEGRITY 9980
 #endif
 
 #endif // __cplusplus