Avoid handling long-obsolete old BSD PTY handling in ptsname.

Support for this type of PTY was removed in the 2.1.115 kernel. Just use __LINUX_KERNEL_VERSION to determine when we can drop the compat code.
git-mirror · Nov 26, 2009 · e2c59de · e2c59de
1 parent c53f622
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diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,9 @@
+2009-11-26  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/unix/sysv/linux/ptsname.c (__ptsname_internal): Avoid code
+	only used on truly ancient kernel if configuration requires a more
+	recent kernel.
+
 2009-11-24  Ulrich Drepper  <drepper@redhat.com>
 
 	[BZ #3662]

diff --git a/sysdeps/unix/sysv/linux/ptsname.c b/sysdeps/unix/sysv/linux/ptsname.c
@@ -128,10 +128,12 @@ __ptsname_internal (int fd, char *buf, size_t buflen, struct stat64 *stp)
 	}
 
       ptyno = minor (stp->st_rdev);
+#if __LINUX_KERNEL_VERSION >= 131443
       /* This is for the old BSD pseudo terminals.  As of Linux
 	 2.1.115 these are no longer supported.  */
       if (major (stp->st_rdev) == 4)
 	ptyno -= 128;
+#endif
 
       if (ptyno / 16 >= strlen (__libc_ptyname1))
 	{