Install warnings on Ubuntu-18.04

[chainhead]

When installing on Ubuntu-18.04 on AWS, I get the following error messages. Installation is done by

npm install nanomsg

In file included from ../deps/nanomsg/src/transports/ipc/sipc.c:26:0:
../deps/nanomsg/src/transports/ipc/sipc.c: In function ‘nn_sipc_handler’:
../deps/nanomsg/src/transports/ipc/../../utils/err.h:48:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
         if (nn_slow (!(x))) {\
            ^
../deps/nanomsg/src/transports/ipc/sipc.c:377:21: note: in expansion of macro ‘nn_assert’
                     nn_assert (0);
                     ^~~~~~~~~
../deps/nanomsg/src/transports/ipc/sipc.c:380:13: note: here
             case NN_USOCK_SHUTDOWN:
             ^~~~
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/tcp/atcp.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/tcp/btcp.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/tcp/ctcp.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/tcp/stcp.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/tcp/tcp.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/utils/backoff.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/utils/base64.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/utils/dns.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/utils/iface.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/utils/literal.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/utils/port.o
  CC(target) Release/obj.target/nanomsg/deps/nanomsg/src/transports/utils/streamhdr.o
In file included from ../deps/nanomsg/src/transports/utils/streamhdr.c:28:0:
../deps/nanomsg/src/transports/utils/streamhdr.c: In function ‘nn_streamhdr_handler’:
../deps/nanomsg/src/transports/utils/../../utils/err.h:48:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
         if (nn_slow (!(x))) {\
            ^
../deps/nanomsg/src/transports/utils/streamhdr.c:239:17: note: in expansion of macro ‘nn_assert’
                 nn_assert (0);
                 ^~~~~~~~~
../deps/nanomsg/src/transports/utils/streamhdr.c:242:9: note: here
         case NN_STREAMHDR_SRC_TIMER:
         ^~~~

BTW, why does installation not go through with a sudo npm i nanomsg -g? I get errors on accessing gyp.

[reqshark]

you getting errors or just warnings?

are you able to install node-nanomsg?

AWS beanstalk? or is that just a standard ubuntu ec2 AMI on AWS?

why does installation not go through with a sudo npm i nanomsg -g

no reason to use -g, this module is not intended for that eclectic node global option