Re: Finding Dependencies at Run Time

[Peter Polidoro]

> The mecanism depends a bit on the build system but for C 
> programs, it's embeded at build-time in its RPATH. For 
> applications, there are
> wrappers 
> (https://guix.gnu.org/manual/devel/en/html_node/Build-Utilities.html#Wrappers).

So in general, packages use environment variables to find the 
absolute paths of their dependencies in the store?

In a package definition, are those dependency paths always set 
using wrap-program? Are search-paths, native-search-paths, and 
setenv also used to set those environment variables or are those 
used for something else?

> Otherwise, we have to propagate run-time dependencies.

So how else can packages propagate run-time dependencies besides 
environment variables?