1 files changed, 1 insertions, 0 deletions

diff --git a/configure1.in b/configure1.in
index 6c23a7724c9..671b74f6430 100755
--- a/configure1.in
+++ b/configure1.in
@@ -865,6 +865,7 @@ if [ ! "${opsys}" ]; then
     *-sysv2.2 | *-sysvr2.2 )            opsys=usg5-2-2 ;;
     *-sysv3 | *-sysvr3 )                opsys=usg5-3 ;;
     *-sysv4 | *-sysvr4 )                opsys=usg5-4 ;;
+    *-sysv4.2 | *-sysvr4.2 )            opsys=usg5-4-2 ;;
     * )
       unported=true
     ;;