Reproducible Builds

[kpcyrd]

Environment

• OS: Arch Linux
• rage version: 0.11.1

What were you trying to do

I have a documented build environment (same libraries, same compiler, same build instructions) and I'm building the rage binary twice, but get different binary outputs.

What happened

It's hard to point out what's causing this, the file size is identical so it could be some ordering issue (object files being linked in different order, a build.rs in the dependency tree iterating over a hashmap, etc). Building on btrfs didn't help, so it's likely not (only) a file-system readdir order problem.

https://web.archive.org/web/20251208181500/https://reproducible.archlinux.org/api/v0/builds/947893/diffoscope

[Simojuv]

This is actually fixed on master right now.
I ran into the same issue on version 0.11.1 and I traced the problem back into i18n-embed-fl and upon checking the version histories, I saw that at least my issue was fixed in i18n-embed-fl v0.10.

kellpossible/cargo-i18n#150

and

https://github.com/kellpossible/cargo-i18n/blob/master/i18n-embed-fl/CHANGELOG.md

I can confirm that current master d1912012424ccb7b63172813ee2776cc570684fa builds reproducibly when cross-compiled, at least for me, using .cargo/config.toml in my project root, where $PWD is expanded :

    [target.armv7-unknown-linux-gnueabihf]
    rustflags = ["--remap-path-prefix", "$PWD=/"]

[kpcyrd]

Sounds like all we'd need is a new release? :) @str4d