environment/2

Documentation
- Reference manual
  - The SWI-Prolog library
    - library(prolog_pack): A package manager for Prolog
- Packages

Availability::- use_module(library(prolog_pack)).

[nondet,multifile]environment(-Name, -Value)

Hook to define the environment for building packs. This Multifile hook extends the process environment for building foreign extensions. A value provided by this hook overrules defaults provided by def_environment/2. In addition to changing the environment, this may be used to pass additional values to the environment, as in:

prolog_pack:environment('USER', User) :-
    getenv('USER', User).

`Name`	is an atom denoting a valid variable name
`Value`	is either an atom or number representing the value of the variable.