Issue #22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(),
instead of reading /dev/urandom, to get pseudo-random bytes.
diff --git a/configure b/configure
index 21bab5b..79e9376 100755
--- a/configure
+++ b/configure
@@ -10495,7 +10495,7 @@
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 \
+ futimens futimes gai_strerror getentropy \
getgrouplist getgroups getlogin getloadavg getpeername getpgid getpid \
getpriority getresuid getresgid getpwent getspnam getspent getsid getwd \
if_nameindex \