bug#64409: libusb shared object file paths

[Garek Dyszel via Bug reports for GNU Guix <bug-guix@gnu.org>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Hi Reed,

At 19:08 2023-07-01 UTC-0400, Reed Meyerson <address@hidden> wrote:
>I can get it to run by manually setting the $LD_LIBRARY_PATH variable:
> 
>[env]$ LD_LIBRARY_PATH=$GUIX_ENVIRONMENT/lib teensy_loader_cli

It seems I found a solution to your problem based on your clue here.
It's kind of a hack since I'm sure the maintainers are trying to get rid
of this, but... the solution is to use libusb-0.1 as a replacement for
the libusb-compat input.

Here's a package variant that does exactly that.

teensy-loader-cli-unbroken.scm:
- --8<---------------cut here---------------start------------->8---
(define-module (teensy-loader-cli-unbroken)
  #:use-module (guix packages)
  #:use-module (guix build utils)
  #:use-module (gnu packages libusb)
  #:use-module (gnu packages flashing-tools))

(define-public teensy-loader-cli-unbroken
  (package
    (inherit teensy-loader-cli)
    (name "teensy-loader-cli-unbroken")
    (inputs (list libusb-0.1))))

teensy-loader-cli-unbroken

- --8<---------------cut here---------------end--------------->8---

It works on my system and gives the usual output.

- --8<---------------cut here---------------start------------->8---
$ $(guix build -f ./teensy-loader-cli-unbroken.scm)/bin/teensy_loader_cli
Filename must be specified

Usage: teensy_loader_cli --mcu=<MCU> [-h] [-w] [-n] [-b] [-v] <file.hex>
        -h : Print this help message
        -w : Wait for device to appear
        -r : Use hard reboot if device not online
        -s : Use soft reboot if device not online (Teensy 3.x & 4.x)
        -n : No reboot after programming
        -b : Boot only, do not program
        -v : Verbose output

Use `teensy_loader_cli --list-mcus` to list supported MCUs.

For more information, please visit:
http://www.pjrc.com/teensy/loader_cli.html
- --8<---------------cut here---------------end--------------->8---

Note that I didn't try to flash anything with it yet. I'm working on
getting the udev rule to install with teensy-loader-cli, but I most
likely won't have that done anytime soon (or at all, if I lose
interest!).

I've been fighting with this sporadically over the last year, and this
was what I needed to get it working. Thanks for the hint!

Garek
-----BEGIN PGP SIGNATURE-----
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=xKJo
-----END PGP SIGNATURE-----