--- Libc/Libc-1353.100.2/stdlib/grantpt.3
+++ Libc/Libc-825.24/stdlib/grantpt.3
@@ -38,7 +38,6 @@
 .Nm grantpt ,
 .Nm posix_openpt ,
 .Nm ptsname ,
-.Nm ptsname_r ,
 .Nm unlockpt
 .Nd pseudo-terminal access functions
 .Sh SYNOPSIS
@@ -51,12 +50,6 @@
 .Fo ptsname
 .Fa "int fildes"
 .Fc
-.Ft "int"
-.Fo ptsname_r
-.Fa "int fildes"
-.Fa "char *buffer"
-.Fa "size_t buflen"
-.Fc
 .Ft int
 .Fo unlockpt
 .Fa "int fildes"
@@ -71,12 +64,11 @@
 The
 .Fn grantpt ,
 .Fn ptsname ,
-.Fn ptsname_r ,
 .Fn unlockpt ,
 and
 .Fn posix_openpt
 functions allow access to pseudo-terminal devices.
-The first four functions accept a file descriptor
+The first three functions accept a file descriptor
 that references the master half of a pseudo-terminal pair.
 This file descriptor is created with
 .Fn posix_openpt .
@@ -97,9 +89,7 @@
 .Pp
 The
 .Fn ptsname
-and
-.Fn ptsname_r
-functions return the full pathname of the slave device
+function returns the full pathname of the slave device
 counterpart to the master device specified with
 .Fa fildes .
 This value can be used
@@ -107,11 +97,7 @@
 .Fn posix_openpt
 and
 .Fn grantpt
-have been called. The
-.Fn ptsname
-function is not guaranteed to be reentrant or thread safe. The
-.Fn ptsname_r
-function takes a buffer and length as arguments to avoid this problem.
+have been called.
 .Pp
 The
 .Fn unlockpt
@@ -148,12 +134,6 @@
 is set to indicate the error.
 .Pp
 The
-.Fn ptsname_r
-function returns 0 if successful.  On failure, it returns -1 and the global variable
-.Va errno
-is set to indicate the error.
-.Pp
-The
 .Fn posix_openpt
 function returns a file descriptor to the first
 available master pseudo-terminal device on success;
@@ -164,7 +144,6 @@
 The
 .Fn grantpt ,
 .Fn ptsname ,
-.Fn ptsname_r ,
 and
 .Fn unlockpt
 functions may fail and set
@@ -174,24 +153,6 @@
 .It Bq Er EINVAL
 .Fa fildes
 is not a master pseudo-terminal device.
-.El
-.Pp
-In addition, the
-.Fn ptsname_r
-function may set
-.Va errno
-to:
-.Bl -tag -width Er
-.It Bq Er EINVAL
-The
-.Va buffer
-argument is NULL.
-.El
-.Bl -tag -width Er
-.It Bq Er ERANGE
-The
-.Va bufsize
-argument is smaller than the length of the string to be returned.
 .El
 .Pp
 In addition, the
@@ -220,7 +181,6 @@
 The
 .Fn grantpt ,
 .Fn ptsname ,
-.Fn ptsname_r ,
 and
 .Fn unlockpt
 functions may also fail and set