I follow the README to install the libevent on Mac os In the last step, make install, It shows
Making install in include
make[3]: Nothing to be done for `install-exec-am'.
.././install-sh -c -d '/usr/local/include'
.././install-sh -c -d '/usr/local/include/event2'
/usr/bin/install -c -m 644 event2/buffer.h event2/buffer_compat.h event2/bufferevent.h event2/bufferevent_compat.h event2/bufferevent_ssl.h event2/bufferevent_struct.h event2/dns.h event2/dns_compat.h event2/dns_struct.h event2/event.h event2/event_compat.h event2/event_struct.h event2/http.h event2/http_compat.h event2/http_struct.h event2/keyvalq_struct.h event2/listener.h event2/rpc.h event2/rpc_compat.h event2/rpc_struct.h event2/tag.h event2/tag_compat.h event2/thread.h event2/util.h '/usr/local/include/event2'
.././install-sh -c -d '/usr/local/include'
.././install-sh -c -d '/usr/local/include/event2'
/usr/bin/install -c -m 644 ./event2/event-config.h '/usr/local/include/event2'
Making install in sample
make[3]: Nothing to be done for `install-exec-am'.
make[3]: Nothing to be done for `install-data-am'.
Making install in test
make install-am
make[4]: Nothing to be done for `install-exec-am'.
make[4]: Nothing to be done for `install-data-am'.
There are many "Nothing to be done". How to fix them?