diff -r dd26184768b0 -r f7fd051519ac make/autoconf/hotspot.m4
--- a/make/autoconf/hotspot.m4	Mon Apr 16 12:20:36 2018 +0200
+++ b/make/autoconf/hotspot.m4	Tue Apr 17 15:39:20 2018 +0200
@@ -269,9 +269,9 @@
     USER_JVM_FEATURE_LIST=`$ECHO $with_jvm_features | $SED -e 's/,/ /g'`
     AC_MSG_RESULT([$user_jvm_feature_list])
     # These features will be added to all variant defaults
-    JVM_FEATURES=`$ECHO $USER_JVM_FEATURE_LIST | $AWK '{ for (i=1; i<=NF; i++) if (!match($i, /-.*/)) print $i }'`
+    JVM_FEATURES=`$ECHO $USER_JVM_FEATURE_LIST | $AWK '{ for (i=1; i<=NF; i++) if (!match($i, /^-.*/)) print $i }'`
     # These features will be removed from all variant defaults
-    DISABLED_JVM_FEATURES=`$ECHO $USER_JVM_FEATURE_LIST | $AWK '{ for (i=1; i<=NF; i++) if (match($i, /-.*/)) print substr($i, 2) }'`
+    DISABLED_JVM_FEATURES=`$ECHO $USER_JVM_FEATURE_LIST | $AWK '{ for (i=1; i<=NF; i++) if (match($i, /^-.*/)) print substr($i, 2) }'`
 
     # Verify that the user has provided valid features
     BASIC_GET_NON_MATCHING_VALUES(INVALID_FEATURES, $JVM_FEATURES $DISABLED_JVM_FEATURES, $VALID_JVM_FEATURES)