link to write-up

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2025-01-02 16:25:19 +02:00
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@@ -4,32 +4,10 @@ Building modern Zig from the original C++ implementation
This repository explores building Zig from the C++ implementation without using This repository explores building Zig from the C++ implementation without using
binary blobs. [Forum post goes with this][1]. binary blobs. [Forum post goes with this][1].
Clone zig and prune binary files from history: This works up to Zig 0.11. Guix [picked it up and went all the way to 0.13.0
and beyond](https://issues.guix.gnu.org/74217). If you want a kosher
`zig1.wasm`, you can take it from Guix, free of charge, right now.
``` Also see my [write-up](https://jakstys.lt/2024/zig-reproduced-without-binaries/).
$ git clone https://github.com/ziglang/zig zig2
$ cd zig2
$ git config user.name "$(git config --get user.name)"
$ git config user.email "$(git config --get user.email)"
$ git filter-repo --prune-empty=never --prune-degenerate never --invert-paths --path-glob 'stage1/zig1.wasm*' --path stage1/zig1.c
```
Now build an isolated container with a bunch of zig historic dependencies:
```
$ docker build -t zig-repro .
$ docker run -ti --rm --name zig-repro \
-v ~/code:/x \
-v /home/$USER/.cache/zig:/home/$USER/.cache/zig \
-w /x/zig2 \
zig-repro \
sh -c "useradd -s /bin/bash -u $UID $USER && su $USER; bash"
```
And run the thing in the container:
```
$ ../zig-repro/run
```
[1]: https://ziggit.dev/t/building-self-hosted-from-the-original-c-implementation/6607/11 [1]: https://ziggit.dev/t/building-self-hosted-from-the-original-c-implementation/6607/11