LIBUSBP on NVIDIA Orin AGX DevKit

RichardStahl · July 29, 2024, 11:16am

Hello,

I have previously successfully compiler the LIBUSBP libraries on Orin AGX DevKit but I am struggling with a strange error at this moment (new Orin where I need to install it again):

When making the lib from source, following the instructions here: (Linux for Linux)

github.com

pololu/pololu-tic-software/blob/master/BUILDING.md

# Building from source

If you want to build this software from its source code, you can follow these
instructions.


## Building from source on Linux with nixcrpkgs

This software can be cross-compiled on a Linux machine using
[nixcrpkgs](https://github.com/pololu/nixcrpkgs), a collection of tools for
cross-compiling.  This is how we build our official installers.

To get started, you should first install [Nix, the purely functional
package manager](http://nixos.org/nix/), on a Linux machine by following the
instructions on the Nix website.

Next, run the comamnds below to download the latest version of
[nixcrpkgs](https://github.com/pololu/nixcrpkgs), a collection of tools for
cross-compiling, and add nixcrpkgs to your `NIX_PATH` environment variable.  You
will need to have [git](https://git-scm.com/) installed.  (If you don't want to

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I get the following error after the make command:

~/libusbp/build/src/libusbp_config.h:3:44: error: missing binary operator before token “1”
3 | #define BUILD_SYSTEM_LIBUSBP_VERSION_MAJOR 1
| ^

Could you please let me know how to resolve this?

Many thanks!
Richard

kevin · August 2, 2024, 12:24am

Hi, Richard.

Unfortunately, the engineer most familiar with that software is out this week. However, the line indicated in your error message seems like it should be a simple #define preprocessor directive, so it’s strange that it’s causing a problem in the build process. Could you post the full output of the build command that produces that error? Please use the Preformatted text button (“</>”) on the forum or put 3 backticks (```) before and after the text so that its alignment is preserved, or attach the output in a file if it’s very long.

Kevin

RichardStahl · August 2, 2024, 7:40am

Hi Kevin,

I have managed to resolve this issue in the meantime. It seems it only exists with the v1-latest repo clone and not with the 1.3.1 tag, i.e. if I clone the 1.3.1 directly everything compiles fine. Maybe something to fix by the repo admins.

Thanks for your response!
Richard