Fix configure.ac and configure.

Signed-off-by: Soumendra Ganguly <[email protected]>

Author: 8vasu

configure

@@ -4681,11 +4681,11 @@ AC_CHECK_FUNCS([ \
   getgrnam_r getgrouplist getgroups gethostname getitimer getloadavg getlogin \
   getpeername getpgid getpid getppid getpriority _getpty \
   getpwent getpwnam_r getpwuid getpwuid_r getresgid getresuid getrusage getsid getspent \
-  getspnam getuid getwd if_nameindex initgroups kill killpg lchown linkat \
+  getspnam getuid getwd grantpt if_nameindex initgroups kill killpg lchown linkat \
   lockf lstat lutimes madvise mbrtowc memrchr mkdirat mkfifo mkfifoat \
   mknod mknodat mktime mmap mremap nice openat opendir pathconf pause pipe \
-  pipe2 plock poll posix_fadvise posix_fallocate posix_spawn posix_spawnp \
-  pread preadv preadv2 pthread_condattr_setclock pthread_init pthread_kill \
+  pipe2 plock poll posix_fadvise posix_fallocate posix_openpt posix_spawn posix_spawnp \
+  pread preadv preadv2 pthread_condattr_setclock pthread_init pthread_kill ptsname \
   pwrite pwritev pwritev2 readlink readlinkat readv realpath renameat \
   rtpSpawn sched_get_priority_max sched_rr_get_interval sched_setaffinity \
   sched_setparam sched_setscheduler sem_clockwait sem_getvalue sem_open \
@@ -4695,7 +4695,7 @@ AC_CHECK_FUNCS([ \
   sigfillset siginterrupt sigpending sigrelse sigtimedwait sigwait \
   sigwaitinfo snprintf splice strftime strlcpy strsignal symlinkat sync \
   sysconf system tcgetpgrp tcsetpgrp tempnam timegm times tmpfile \
-  tmpnam tmpnam_r truncate ttyname umask uname unlinkat utimensat utimes vfork \
+  tmpnam tmpnam_r truncate ttyname umask uname unlinkat unlockpt utimensat utimes vfork \
   wait wait3 wait4 waitid waitpid wcscoll wcsftime wcsxfrm wmemcmp writev \
 ])
 
@@ -4943,21 +4943,6 @@ PY_CHECK_FUNC([setgroups], [
 #endif
 ])
 
-# check for posix_openpt, grantpt, unlockpt, and ptsname
-
-AC_SEARCH_LIBS([posix_openpt], [util],
- [AC_DEFINE([HAVE_POSIX_OPENPT], [1], [Define to 1 if you have the `posix_openpt' function.])]
-)
-AC_SEARCH_LIBS([grantpt], [util],
- [AC_DEFINE([HAVE_GRANTPT], [1], [Define to 1 if you have the `grantpt' function.])]
-)
-AC_SEARCH_LIBS([unlockpt], [util],
- [AC_DEFINE([HAVE_UNLOCKPT], [1], [Define to 1 if you have the `unlockpt' function.])]
-)
-AC_SEARCH_LIBS([ptsname], [util],
- [AC_DEFINE([HAVE_PTSNAME], [1], [Define to 1 if you have the `ptsname' function.])]
-)
-
 # check for openpty, login_tty, and forkpty
 
 AC_CHECK_FUNCS(openpty,,