Adjusting Load Path from C/C++?

[Jaft <jaft.r@outlook.com>]

Hello.
I'm attempting to use Guile, from C, in a project. I've managed, I believe, to properly hook up the dependencies and can #include but running scm_init_guile() results in the error

 Throw without catch before boot:
Throw to key misc-error with args ("primitive-load-path" "Unable to find file ~S in load path" ("ice-9/boot-9") #f)Aborting.

Definitely someone correct me if I'm mistaken but I'm guessing it's occurring because it's not finding the .scm files that typically (I think? Leastwise, where I've always seen them) reside in a "share" directory somewhere on the root path tree?
So this project allows moving libraries into where it's deployed but all other files are containerized in the app's designated directory.
I believe there's a way to set the load path on build of Guile (though, now that I think about it, the project may not share what the eventual app. directory is/will-be during the build process so that may not even be feasible…) but I was wondering if there was a way to set (or add to) the build path from C?
I was thinking something like add-to-load-path but I didn't see a corresponding C function in the documentation.
If I had a way, I figured I could just, then, have the necessary modules moved to the app.'s directory on build, add the current directory to the load path, and then call scm_init_guile().
I dunno if there is a solve but thanks to anyone for any help!
Jonathan