BusyBox v1.28.3 () built-in shell (ash)

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   O-ware: 0.3.2 b218
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root@Omega-2F49:~# node --max_old_space_size=64 $(which npm) install serialport
--unsafe-perm --build-from-source

> @serialport/bindings@2.0.7 install /root/node_modules/@serialport/bindings
> prebuild-install --tag-prefix @serialport/bindings@ || node-gyp rebuild

make: Entering directory '/root/node_modules/@serialport/bindings/build'
  CXX(target) Release/obj.target/bindings/src/serialport.o
  CXX(target) Release/obj.target/bindings/src/serialport_unix.o
  CXX(target) Release/obj.target/bindings/src/poller.o
  CXX(target) Release/obj.target/bindings/src/serialport_linux.o
  SOLINK_MODULE(target) Release/obj.target/bindings.node
/usr/bin/ld: cannot find -lpthread
collect2: error: ld returned 1 exit status
make: *** [bindings.target.mk:128: Release/obj.target/bindings.node] Error 1
make: Leaving directory '/root/node_modules/@serialport/bindings/build'
gyp ERR! build error
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/lib/node_modules/npm/node_module                                                                                     s/node-gyp/lib/build.js:262:23)
gyp ERR! stack     at emitTwo (events.js:126:13)
gyp ERR! stack     at ChildProcess.emit (events.js:214:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_proces                                                                                     s.js:198:12)
gyp ERR! System Linux 4.14.81
gyp ERR! command "/usr/bin/node" "/usr/lib/node_modules/npm/node_modules/node-gy                                                                                     p/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /root/node_modules/@serialport/bindings
gyp ERR! node -v v8.10.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
npm WARN enoent ENOENT: no such file or directory, open '/root/package.json'
npm WARN root No description
npm WARN root No repository field.
npm WARN root No README data
npm WARN root No license field.

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @serialport/bindings@2.0.7 install: `prebuild-install --tag-prefix @ser                                                                                     ialport/bindings@ || node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @serialport/bindings@2.0.7 install script.
npm ERR! This is probably not a problem with npm. There is likely additional log                                                                                     ging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2019-03-19T08_25_29_634Z-debug.log

If I try to

opkg install libpthread

I get

Package libpthread (1.1.19-1) installed in root is up to date.

I have the latest versions of make (4.2.1-2) and gcc version 5.4.0 (OpenWrt GCC 5.4.0) with threadmodel: posix

Did anyone else have luck installing serialport or know how to do it, or do I have to bite the dust and use older firmware to get an older, working package?

regards

run
ar -rc /usr/lib/libpthread.a
to create an archive file that is missing.

Also, for serialport specifically it looks like someone has tackled that:

https://community.onion.io/topic/1537/serial-ports-usb-and-nodejs-support