--- gvpe/configure.ac	2018/10/25 07:31:58	1.67
+++ gvpe/configure.ac	2022/10/06 03:25:53	1.68
@@ -1,7 +1,7 @@
 dnl Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.69)
-AC_INIT(gvpe, 3.1)
+AC_PREREQ([2.71])
+AC_INIT([gvpe],[3.1])
 AC_CONFIG_SRCDIR([src/gvpe.C])
 AC_CANONICAL_TARGET
 AM_INIT_AUTOMAKE
@@ -181,7 +181,8 @@
 AC_C_CONST
 AC_TYPE_PID_T
 AC_TYPE_SIZE_T
-AC_HEADER_TIME
+AC_CHECK_HEADERS_ONCE([sys/time.h])
+
 AC_STRUCT_TM
 
 AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
@@ -203,13 +204,8 @@
   AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available])
 fi
 
-dnl Checks for library functions.
-AC_TYPE_SIGNAL
-
 AC_LANG_PUSH(C)
 
-AC_HEADER_STDC
-
 dnl argl, could somebody catapult darwin into the 21st century???
 AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall)