+# ------------------------------------------------------------------------------
+AC_ARG_WITH(system-uid-max,
+ AS_HELP_STRING([--with-system-uid-max=UID]
+ [Maximum UID for system users]),
+ [SYSTEM_UID_MAX="$withval"],
+ [SYSTEM_UID_MAX="`awk 'BEGIN { uid=999 } /^\s*SYS_UID_MAX\s+/ { uid=$2 } END { print uid }' /etc/login.defs 2>/dev/null || echo 999`"])
+
+AC_DEFINE_UNQUOTED(SYSTEM_UID_MAX, [$SYSTEM_UID_MAX], [Maximum System UID])
+AC_SUBST(SYSTEM_UID_MAX)
+
+# ------------------------------------------------------------------------------
+AC_ARG_WITH(system-gid-max,
+ AS_HELP_STRING([--with-system-gid-max=GID]
+ [Maximum GID for system groups]),
+ [SYSTEM_GID_MAX="$withval"],
+ [SYSTEM_GID_MAX="`awk 'BEGIN { gid=999 } /^\s*SYS_GID_MAX\s+/ { gid=$2 } END { print gid }' /etc/login.defs 2>/dev/null || echo 999`"])
+
+AC_DEFINE_UNQUOTED(SYSTEM_GID_MAX, [$SYSTEM_GID_MAX], [Maximum System GID])
+AC_SUBST(SYSTEM_GID_MAX)
+