Error: libstdc++.so.6: version `GLIBCXX_3.4.21' not found

[ztnark]

Having this issue on CentOS 7.

Error: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /src/node_modules/scrypt/build/Release/scrypt.node)
at Object.Module._extensions..node (module.js:681:18)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)
at Module.require (module.js:596:17)
at require (internal/module.js:11:18)
at Object. (/src/node_modules/scrypt/index.js:3:20)
at Module._compile (module.js:652:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)

[chrisveness]

I think Barry may have abandoned this project. If you are using Node.js v10.5.0+, you could try my scrypt-kdf, which is a simple pure-JS wrapper around the native OpenSSL implementation of scrypt. If you try it, I would be interested to know whether you have any issues.

[jablko]

Statically linking libstdc++ solved this for me. In my case:

> LDFLAGS=-static-libstdc++ yarn

Alternatively you could try dynamically linking against the same version of libstdc++ as is installed on the host system. docker-lambda might help, if you want to run it on AWS Lambda.