diff --git a/config/mh-sco b/config/mh-sco
new file mode 100644
index 00000000000..e2897502f05
--- /dev/null
+++ b/config/mh-sco
@@ -0,0 +1,4 @@
+# Define SYSV as -DSYSV if you are using a System V operating system.
+SYSV = -DSYSV
+RANLIB = echo >/dev/null
+BISON = yacc -Sm10400