uswgi fails to install in virtualenv with pip

[aphenine]

I have no idea if this is similar to the many issues with the same title, but none of them look the same.

I'm running Ubuntu and you can assume I have all the python-dev and build-essential tools installed.

The error looks like a warning turned error in the compiler over a switch-case statement. I have no idea why that would break.

  Running setup.py install for uwsgi ... error
    ERROR: Complete output from command /home/ela/.virtualenvs/cgscope/bin/python3 -u -c 'import setuptools, tokenize;__file__='"'"'/tmp/pip-install-rqjjz9e0/uwsgi/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-_ht2h7zh/install-record.txt --single-version-externally-managed --compile --install-headers /home/ela/.virtualenvs/cgscope/include/site/python3.6/uwsgi:
    ERROR: running install
    using profile: buildconf/default.ini
    detected include path: ['/usr/lib/gcc/x86_64-linux-gnu/7/include', '/usr/local/include', '/usr/lib/gcc/x86_64-linux-gnu/7/include-fixed', '/usr/include/x86_64-linux-gnu', '/usr/include']
    Patching "bin_name" to properly install_scripts dir
    detected CPU cores: 8
    configured CFLAGS: -O2 -I. -Wall -Werror -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -DUWSGI_HAS_IFADDRS -DUWSGI_ZLIB -DUWSGI_LOCK_USE_MUTEX -DUWSGI_EVENT_USE_EPOLL -DUWSGI_EVENT_TIMER_USE_TIMERFD -DUWSGI_EVENT_FILEMONITOR_USE_INOTIFY  -DUWSGI_PCRE -DUWSGI_ROUTING -DUWSGI_VERSION="\"2.0.13.1\"" -DUWSGI_VERSION_BASE="2" -DUWSGI_VERSION_MAJOR="0" -DUWSGI_VERSION_MINOR="13" -DUWSGI_VERSION_REVISION="1" -DUWSGI_VERSION_CUSTOM="\"\"" -DUWSGI_YAML -DUWSGI_XML -DUWSGI_XML_EXPAT -DUWSGI_PLUGIN_DIR="\".\"" -DUWSGI_DECLARE_EMBEDDED_PLUGINS="UDEP(python);UDEP(gevent);UDEP(ping);UDEP(cache);UDEP(nagios);UDEP(rrdtool);UDEP(carbon);UDEP(rpc);UDEP(corerouter);UDEP(fastrouter);UDEP(http);UDEP(ugreen);UDEP(signal);UDEP(syslog);UDEP(rsyslog);UDEP(logsocket);UDEP(router_uwsgi);UDEP(router_redirect);UDEP(router_basicauth);UDEP(zergpool);UDEP(redislog);UDEP(mongodblog);UDEP(router_rewrite);UDEP(router_http);UDEP(logfile);UDEP(router_cache);UDEP(rawrouter);UDEP(router_static);UDEP(sslrouter);UDEP(spooler);UDEP(cheaper_busyness);UDEP(symcall);UDEP(transformation_tofile);UDEP(transformation_gzip);UDEP(transformation_chunked);UDEP(transformation_offload);UDEP(router_memcached);UDEP(router_redis);UDEP(router_hash);UDEP(router_expires);UDEP(router_metrics);UDEP(transformation_template);UDEP(stats_pusher_socket);" -DUWSGI_LOAD_EMBEDDED_PLUGINS="ULEP(python);ULEP(gevent);ULEP(ping);ULEP(cache);ULEP(nagios);ULEP(rrdtool);ULEP(carbon);ULEP(rpc);ULEP(corerouter);ULEP(fastrouter);ULEP(http);ULEP(ugreen);ULEP(signal);ULEP(syslog);ULEP(rsyslog);ULEP(logsocket);ULEP(router_uwsgi);ULEP(router_redirect);ULEP(router_basicauth);ULEP(zergpool);ULEP(redislog);ULEP(mongodblog);ULEP(router_rewrite);ULEP(router_http);ULEP(logfile);ULEP(router_cache);ULEP(rawrouter);ULEP(router_static);ULEP(sslrouter);ULEP(spooler);ULEP(cheaper_busyness);ULEP(symcall);ULEP(transformation_tofile);ULEP(transformation_gzip);ULEP(transformation_chunked);ULEP(transformation_offload);ULEP(router_memcached);ULEP(router_redis);ULEP(router_hash);ULEP(router_expires);ULEP(router_metrics);ULEP(transformation_template);ULEP(stats_pusher_socket);"
    *** uWSGI compiling server core ***
    core/utils.o is up to date
    core/protocol.o is up to date
    core/socket.o is up to date
    core/logging.o is up to date
    core/master.o is up to date
    core/master_utils.o is up to date
    core/emperor.o is up to date
    core/notify.o is up to date
    core/mule.o is up to date
    core/subscription.o is up to date
    core/stats.o is up to date
    core/sendfile.o is up to date
    core/async.o is up to date
    core/master_checks.o is up to date
    core/fifo.o is up to date
    core/offload.o is up to date
    core/io.o is up to date
    core/static.o is up to date
    core/websockets.o is up to date
    core/spooler.o is up to date
    core/snmp.o is up to date
    core/exceptions.o is up to date
    core/config.o is up to date
    core/setup_utils.o is up to date
    core/clock.o is up to date
    core/init.o is up to date
    core/buffer.o is up to date
    core/reader.o is up to date
    core/writer.o is up to date
    core/alarm.o is up to date
    core/cron.o is up to date
    core/hooks.o is up to date
    core/plugins.o is up to date
    core/lock.o is up to date
    core/cache.o is up to date
    core/daemons.o is up to date
    core/errors.o is up to date
    [thread 1][x86_64-linux-gnu-gcc -pthread] core/hash.o
    core/master_events.o is up to date
    core/chunked.o is up to date
    [thread 2][x86_64-linux-gnu-gcc -pthread] core/queue.o
    [thread 3][x86_64-linux-gnu-gcc -pthread] core/event.o
    [thread 4][x86_64-linux-gnu-gcc -pthread] core/signal.o
    [thread 5][x86_64-linux-gnu-gcc -pthread] core/strings.o
    [thread 6][x86_64-linux-gnu-gcc -pthread] core/progress.o
    [thread 7][x86_64-linux-gnu-gcc -pthread] core/timebomb.o
    [thread 0][x86_64-linux-gnu-gcc -pthread] core/ini.o
    core/hash.c: In function ‘murmur2_hash’:
    core/hash.c:44:13: error: this statement may fall through [-Werror=implicit-fallthrough=]
               h ^= key[2] << 16;
               ~~^~~~~~~~~~~~~~~
    core/hash.c:45:7: note: here
           case 2:
           ^~~~
    core/hash.c:46:13: error: this statement may fall through [-Werror=implicit-fallthrough=]
               h ^= key[1] << 8;
               ~~^~~~~~~~~~~~~~
    core/hash.c:47:7: note: here
           case 1:
           ^~~~
    [thread 6][x86_64-linux-gnu-gcc -pthread] core/fsmon.o
    cc1: all warnings being treated as errors
    ----------------------------------------
ERROR: Command "/home/ela/.virtualenvs/cgscope/bin/python3 -u -c 'import setuptools, tokenize;__file__='"'"'/tmp/pip-install-rqjjz9e0/uwsgi/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-_ht2h7zh/install-record.txt --single-version-externally-managed --compile --install-headers /home/ela/.virtualenvs/cgscope/include/site/python3.6/uwsgi" failed with error code 1 in /tmp/pip-install-rqjjz9e0/uwsgi/

[xrmx]

This has already been fixed 1.5 years ago. Use latest stable release.