Add setup-i686-gcc action - #66
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Our main use case for the `apt-install` action (#60) is installing the packages we need to make `i686-unknown-linux-gnu` Rust programs build and run on 64-bit runners. The main thing it was trying to do was avoid `apt-get update` via caching as updating the index was adding some 7s to each build, unfortunately that didn't work out (#65). Another thing we can do is avoid installing the whole of `gcc-multilib` and disable the `needsrestart` hooks since we don't care about those. Instead it installs `libc6-dev-i386` and `lib32gcc-13-dev` which seem to be sufficient: see RustCrypto/crypto-bigint#1331. This adds an action we can use everywhere we're doing setup for `i686-unknown-linux-gnu` builds which gives us one place to do these specific kinds of optimizations that don't need to apply to `apt-get` as a whole like `apt-install` was trying to do.
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Merging so I can test it out |
tarcieri
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Aug 4, 2026
| env: | ||
| DEBIAN_FRONTEND: noninteractive | ||
| NEEDRESTART_SUSPEND: 1 | ||
| run: sudo apt-get update && apt-get install -y ${{ inputs.packages }} |
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Blah, forgot to add the specific packages 🤦
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Our main use case for the
apt-installaction (#60) is installing the packages we need to makei686-unknown-linux-gnuRust programs build and run on 64-bit runners.The main thing it was trying to do was avoid
apt-get updatevia caching as updating the index was adding some 7s to each build, unfortunately that didn't work out (#65).Another thing we can do is avoid installing the whole of
gcc-multiliband disable theneedsrestarthooks since we don't care about those. Instead it installslibc6-dev-i386andlib32gcc-13-devwhich seem to be sufficient: see RustCrypto/crypto-bigint#1331.This adds an action we can use everywhere we're doing setup for
i686-unknown-linux-gnubuilds which gives us one place to do these specific kinds of optimizations that don't need to apply toapt-getas a whole likeapt-installwas trying to do.