diff --git a/Modules/posixmodule.h b/Modules/posixmodule.h
index 1ec1833825..be2308ea86 100644
--- Modules/posixmodule.h
+++ Modules/posixmodule.h
@@ -19,6 +19,8 @@ PyAPI_FUNC(int) _Py_Gid_Converter(PyObject *, void *);
 #endif /* MS_WINDOWS */
 #endif
 
+PyAPI_FUNC(void) _Py_closerange(int first, int last);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/configure b/configure
index 829dd69bb8..2eeadec5f0 100755
--- configure
+++ configure
@@ -11490,9 +11490,9 @@ fi
 
 # checks for library functions
 for ac_func in alarm accept4 setitimer getitimer bind_textdomain_codeset chown \
- clock confstr ctermid dup3 execv faccessat fchmod fchmodat fchown fchownat \
- fexecve fdopendir fork fpathconf fstatat ftime ftruncate futimesat \
- futimens futimes gai_strerror getentropy \
+ clock close_range confstr ctermid dup3 execv faccessat fchmod fchmodat fchown \
+ fchownat fdwalk fexecve fdopendir fork fpathconf fstatat ftime ftruncate \
+ futimesat futimens futimes gai_strerror getentropy \
  getgrouplist getgroups getlogin getloadavg getpeername getpgid getpid \
  getpriority getresuid getresgid getpwent getspnam getspent getsid getwd \
  if_nameindex \
diff --git a/configure.ac b/configure.ac
index f1cc8e9bcb..80952290b7 100644
--- configure.ac
+++ configure.ac
@@ -3574,9 +3574,9 @@ fi
 
 # checks for library functions
 AC_CHECK_FUNCS(alarm accept4 setitimer getitimer bind_textdomain_codeset chown \
- clock confstr ctermid dup3 execv faccessat fchmod fchmodat fchown fchownat \
- fexecve fdopendir fork fpathconf fstatat ftime ftruncate futimesat \
- futimens futimes gai_strerror getentropy \
+ clock close_range confstr ctermid dup3 execv faccessat fchmod fchmodat fchown \
+ fchownat fdwalk fexecve fdopendir fork fpathconf fstatat ftime ftruncate \
+ futimesat futimens futimes gai_strerror getentropy \
  getgrouplist getgroups getlogin getloadavg getpeername getpgid getpid \
  getpriority getresuid getresgid getpwent getspnam getspent getsid getwd \
  if_nameindex \
diff --git a/pyconfig.h.in b/pyconfig.h.in
index ebab5ff518..e1d659059c 100644
--- pyconfig.h.in
+++ pyconfig.h.in
@@ -128,6 +128,9 @@
 /* Define to 1 if you have the `clock_settime' function. */
 #undef HAVE_CLOCK_SETTIME
 
+/* Define to 1 if you have the `close_range' function. */
+#undef HAVE_CLOSE_RANGE
+
 /* Define if the C compiler supports computed gotos. */
 #undef HAVE_COMPUTED_GOTOS
 
@@ -324,6 +327,9 @@
 /* Define to 1 if you have the `fdopendir' function. */
 #undef HAVE_FDOPENDIR
 
+/* Define to 1 if you have the `fdwalk' function. */
+#undef HAVE_FDWALK
+
 /* Define to 1 if you have the `fexecve' function. */
 #undef HAVE_FEXECVE