name: allow-unsafe-native-code-during-evaluation internalName: enableNativeCode type: bool default: false

Enable built-in functions that allow executing native code.

In particular, this adds:

• builtins.importNative path symbol

  Runs function with symbol from a dynamic shared object (DSO) at path. This may be used to add new builtins to the Nix language. The procedure must have the following signature:

  extern "C" typedef void (*ValueInitialiser) (EvalState & state, Value & v);
  

• builtins.exec arguments

  Execute a program, where arguments are specified as a list of strings, and parse its output as a Nix expression.