diff --git a/configure b/configure
index 21ca48b..aca0410 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.316 .
+# From configure.in Revision: 1.317 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.53.
 #
@@ -11278,6 +11278,7 @@
 
 
 
+
 for ac_func in alarm chown chroot clock confstr ctermid ctermid_r execv \
  fchdir flock fork fsync fdatasync fpathconf ftime ftruncate \
  gai_strerror getgroups getlogin getpeername getpid getpwent getwd \
@@ -11286,8 +11287,8 @@
  putenv readlink \
  select setegid seteuid setgid setgroups \
  setlocale setregid setreuid setsid setpgid setuid setvbuf snprintf \
- sigaction siginterrupt sigrelse strftime strptime symlink sysconf \
- tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
+ sigaction siginterrupt sigprocmask sigrelse strftime strptime symlink \
+ sysconf tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
  truncate uname unsetenv waitpid _getpty getpriority
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`