Hello,

I have been trying to get the teensy-loader-cli package working on my
machine and I am running into shared object file related errors.

explanation of bug:

running "teensy_loader_cli" (from the "teensy-loader-cli" package) gives
the following error:

teensy_loader_cli: error while loading libusb-1.0.so.0 from
libusb-0.1.so.4: libusb-1.0.so.0: cannot open shared object file: No such
file or directory

How to reproduce the bug:

$ guix shell --container teensy_loader_cli
[env]$ teensy_loader_cli

In the guix shell container, it does seem that there is no file for
libusb-1.0.so.0. In particular $GUIX_ENVIRONMENT/lib doesn't exist. I can
include the file in the environment by adding the libusb package:

$ guix shell --container teensy_loader_cli libusb coreutils
[env]$ ls $GUIX_ENVIRONMENT/lib
libusb-1.0.a   libusb-1.0.so libusb-1.0.so.0.3.0
libusb-1.0.la  libusb-1.0.so.0 pkgconfig

However,
[env]$ teensy_loader_cli
still gives the same error as before.

I can get it to run by manually setting the $LD_LIBRARY_PATH variable:

[env]$ LD_LIBRARY_PATH=$GUIX_ENVIRONMENT/lib teensy_loader_cli

Best,
Reed