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Finished adding (untested) C decompression libraries.

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Caleb J. Gardner
2026-02-08 06:52:14 -06:00
parent 61311433b9
commit 2760ad6ccb
4 changed files with 149 additions and 12 deletions
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README.md
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@@ -26,3 +26,25 @@ Most features are present except for the following:
* xattrs are not applied on extraction
* Only zstd c library is implemented (all others result in error.TODO).
* When using Zig decompression libraries then lzo and lz4 compression types are unavailable. I don't _really_ plan on spending the time to find and validate a library since neither is popular.
## Building considerations
Compilation without `use_c_libs` works completely fine, but Zig has issues with some symbols from the lzo library that needs to be manually fixed. In particular you need to fix the definitions for `lzo_bytep` and `lzo_voidp` to be `*u8` and `?*anyopaque` respectively.
```zig
pub const lzo_bytep = @compileError("unable to translate C expr: unexpected token ''");
// /usr/include/lzo/lzoconf.h:148:9
pub const lzo_charp = @compileError("unable to translate C expr: unexpected token ''");
// /usr/include/lzo/lzoconf.h:149:9
pub const lzo_voidp = @compileError("unable to translate C expr: unexpected token ''");
```
to
```zig
pub const lzo_bytep = *u8;
// /usr/include/lzo/lzoconf.h:148:9
pub const lzo_charp = @compileError("unable to translate C expr: unexpected token ''");
// /usr/include/lzo/lzoconf.h:149:9
pub const lzo_voidp = ?*anyopaque;
```