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.

diff --git a/ChangeLog b/ChangeLog
index 000a535..1b487ec 100644 (file)
--- 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
index ba7c791..129d090 100644 (file)
--- 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))
        {