AC_ALTZONE
#
+dnl do we have the GNU libc?
+AC_GNU_LIBC
+
+#
+dnl define uint, ulong and ullong if not already defined
+AC_CHECK_TYPE(uint,unsigned int)
+AC_CHECK_TYPE(ulong,unsigned long)
+AC_CHECK_TYPE(ullong,unsigned long long)
+
+#
dnl ** check for specific library functions that we are interested in
#
AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect setitimer stat sysconf timelocal times vadvise vfork)