diff --git a/configure b/configure
index 620878bb181378..e0fa1aa0ec750e 100755
--- a/configure
+++ b/configure
@@ -9619,11 +9619,7 @@ then
 	case $ac_sys_system in
 	    SCO_SV*) OPT="$OPT -m486 -DSCO5"
 	    ;;
-        esac
-	;;
-
-    *)
-	OPT="-O"
+  esac
 	;;
     esac
 fi
diff --git a/configure.ac b/configure.ac
index 8ef479fe32036c..eb6fb6612b8bdd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2336,11 +2336,7 @@ then
 	case $ac_sys_system in
 	    SCO_SV*) OPT="$OPT -m486 -DSCO5"
 	    ;;
-        esac
-	;;
-
-    *)
-	OPT="-O"
+  esac
 	;;
     esac
 fi