Update freetype-sys to 0.23 - #78
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freetype-sys 0.23 doesn't build with the version shipped in ubuntu 22.
Ubuntu 24 doesn't seem to ship libfreetype-dev in CI images by default.
configuration error in freetype-sys in ubuntu 22.04 CI:
```
thread 'main' (2233) panicked at /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/freetype-sys-0.23.0/build.rs:21:18:
called `Result::unwrap()` on an `Err` value:
pkg-config exited with status code 1
> PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 pkg-config --libs --cflags freetype2 'freetype2 >= 24.3.18'
pkg-config output:
Package dependency requirement 'freetype2 >= 24.3.18' could not be satisfied.
Package 'freetype2' has version '24.1.18', required version is '>= 24.3.18'
The system library `freetype2` required by crate `freetype-sys` was not found.
The file `freetype2.pc` needs to be installed and the PKG_CONFIG_PATH environment variable must contain its parent directory.
The PKG_CONFIG_PATH environment variable is not set.
HINT: if you have installed the library, try setting PKG_CONFIG_PATH to the directory containing `freetype2.pc`.
```
jschwe
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May 10, 2026
mrobinson
approved these changes
Jun 11, 2026
mrobinson
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Looks good, but let's bump the version to 0.8 before landing.
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This is a less invasive alternative to #77 that doesn't touch the bindings.
It does delete all the bindings tests, since those had UB (null-ptr dereference).
freetype-sys 0.23 does require a newer freetype version, and hence might not run on Ubuntu 22.04 out of the box anymore - at least in CI it fails and required updating ot ubuntu 24.04