Remove __set_errno definition.

sysdeps/standalone/arm/bits/errno.h

@@ -60,7 +60,6 @@
 # define EOVERFLOW	32
 #endif
 
-#define __set_errno(val) errno = (val)
 
 /* Function to get address of global `errno' variable.  */
 extern int *__errno_location __P ((void)) __attribute__ ((__const__));

sysdeps/standalone/bits/errno.h

@@ -57,5 +57,3 @@
 # define ENOSPC 31
 # define EBUSY 32
 #endif
-
-#define __set_errno(val) errno = (val)

sysdeps/unix/sysv/aix/bits/errno.h

@@ -144,10 +144,6 @@
 # define EMULTIHOP	125	/* Multihop is not allowed.  */
 # define ENOLINK	126	/* The link has been severed.  */
 # define EOVERFLOW	127	/* Value too large to be stored in data type.*/
-
-# ifdef _LIBC
-#  define __set_errno(val) errno = (val)
-# endif
 #endif
 
 #if !defined _ERRNO_H && defined __need_Emath

sysdeps/unix/sysv/hpux/bits/errno.h

@@ -32,5 +32,3 @@
 #define ENOMSG		35
 #define ENOSYS		251
 #endif
-
-#define __set_errno(val) errno = (val)

sysdeps/unix/sysv/linux/hppa/bits/errno.h

@@ -29,17 +29,9 @@
 # define ECANCELED	125
 
 # ifndef __ASSEMBLER__
-/* We now need a declaration of the `errno' variable.  */
-extern int errno;
-
 /* Function to get address of global `errno' variable.  */
 extern int *__errno_location (void) __THROW __attribute__ ((__const__));
 
-#  if defined _LIBC
-/* We wouldn't need a special macro anymore but it is history.  */
-#   define __set_errno(val) (*__errno_location ()) = (val)
-#  endif /* _LIBC */
-
 #  if !defined _LIBC || defined _LIBC_REENTRANT
 /* When using threads, errno is a per-thread value.  */
 #   define errno (*__errno_location ())

sysdeps/unix/sysv/linux/mips/bits/errno.h

@@ -28,17 +28,9 @@
 # define ENOTSUP EOPNOTSUPP
 
 # ifndef __ASSEMBLER__
-/* We now need a declaration of the `errno' variable.  */
-extern int errno;
-
 /* Function to get address of global `errno' variable.  */
 extern int *__errno_location (void) __THROW __attribute__ ((__const__));
 
-#  if defined _LIBC
-/* We wouldn't need a special macro anymore but it is history.  */
-#   define __set_errno(val) (*__errno_location ()) = (val)
-#  endif /* _LIBC */
-
 #  if !defined _LIBC || defined _LIBC_REENTRANT
 /* When using threads, errno is a per-thread value.  */
 #   define errno (*__errno_location ())

sysdeps/unix/sysv/sysv4/solaris2/bits/errno.h

@@ -166,5 +166,3 @@
 # define ESTALE		151     /* Stale NFS file handle.  */
 
 #endif
-
-#define __set_errno(val) errno = (val)