jdk9/dev/jdk/src/share/back/eventFilter.c:291:41: error: '&&' within '||' [-Werror,-Wlogical-op-parentheses]
       return (major > 1 || major == 1 && minor >= 2);
                         ~~ ~~~~~~~~~~~^~~~~~~~~~~~~
dev/jdk/src/share/back/eventFilter.c:291:41: note: place parentheses around the '&&' expression to silence this warning
       return (major > 1 || major == 1 && minor >= 2);
                                       ^
                            ( )
1 error generated.
make[2]: *** [dk9/dev/build/macosx-x86_64-normal-server-fastdebug/jdk/objs/libjdwp/eventFilter.o] Error 1
make[1]: *** [libs-only] Error 2
make: *** [jdk-only] Error 2