# Objective
- https://github.com/bevyengine/bevy/pull/13136 changed the default
value of `-Zshare-generics=n` to `-Zshare-generics=y` on Windows
- New users are encouraged to use dynamic builds and LLD when setting up
Bevy
- New users are also encouraged to check out `fast_config.toml`
- https://github.com/bevyengine/bevy/issues/1126 means that running
dynamic builds, using LLD and sharing generics on Windows results in a
cryptic error message
As a result, a new Windows user following all recommendations for better
compiles is actually not able to compile Bevy at all.
## Solution
- Set `-Zshare-generics=n` on Windows with a comment saying this is for
dynamic linking
## Testing
I verified that https://github.com/bevyengine/bevy/issues/1126 is still
in place on the current nightly (1.80)
## Additional Info
Maybe the website should mention this as well? The relevant snippet
there looks like this:
```toml
# /path/to/project/.cargo/config.toml
[target.x86_64-unknown-linux-gnu]
rustflags = [
# (Nightly) Make the current crate share its generic instantiations
"-Zshare-generics=y",
]
```
so it kinda implies it's only for Linux? Which is not quite true, this
setting works on macOS as well AFAIK
a58c4f7825