build_tools:prolog_install

library
- build

prolog_install_prefix(-Prefix) is semidet

Return the directory that can be passed into configure or cmake to install executables and other related resources in a similar location as SWI-Prolog itself. Tries these rules:

If the Prolog flag pack_prefix at a writable directory, use this.
If the current executable can be found on $PATH and the parent of the directory of the executable is writable, use this.
If the user has a writable ~/bin directory, use ~.