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Supporting prefixed installation, such as in /usr/local in SLUL?
* Should it affect the search path of libraries themselves?
- ?
* Should it affect the search path when doing I/O within a library?
- Yes, but this would work by passing some I/O object from the main
command to the library.
* Should it affect `giveme`s in the main command?
- Yes.
Ways to implement this:
* Can rpath be used? Can the loader read the rpath and pick it up and use
it for looking in <rpath>/etc, for example /usr/local/etc.
- Note that ~/.local is different. If installed there, you'd want to
load configuration from ~/.config (but you probably always want to
load it from there anyway).
* Can the path of the executable be used?
- No, that could be a security issue (libraries could be picked up
from a downloads directory for example).
* Can the path be embedded in a custom ELF attribute? For example in
the program header ("PT_SLUL_INSTPATH") or in the dynamic segment
("DT_SLUL_INSTPATH").
- Probably only worse than rpath, if rpath can do this.
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