build(cargo): create a fast builds configuration for cargo

Credit goes to [Bevy](https://github.com/bevyengine/bevy)!

1 files changed, 29 insertions, 0 deletions

diff --git a/.cargo/config_fast_builds.toml b/.cargo/config_fast_builds.toml
new file mode 100644
index 0000000..983e29a
--- /dev/null
+++ b/.cargo/config_fast_builds.toml
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+# All credit goes to the Bevy for this configuration:
+# https://github.com/bevyengine/bevy/blob/main/.cargo/config_fast_builds
+
+# Add the contents of this file to `config.toml` to enable "fast build"
+# configuration. Please read the notes below.
+
+# NOTE: For maximum performance, build using a nightly compiler.
+# If you are using Rust stable, remove the "-Zshare-generics=y below.
+
+[target.x86_64-unknown-linux-gnu]
+linker = "/usr/bin/clang"
+rustflags = ["-Clink-arg=-fuse-ld=lld", "-Zshare-generics=y"]
+
+# NOTE: You must manually install https://github.com/michaeleisel/zld on mac.
+# You can easily do this with the "brew" package manager:
+# `brew install michaeleisel/zld/zld`
+[target.x86_64-apple-darwin]
+rustflags = ["-C", "link-arg=-fuse-ld=/usr/local/bin/zld", "-Zshare-generics=y"]
+
+[target.x86_64-pc-windows-msvc]
+linker = "rust-lld.exe"
+rustflags = ["-Zshare-generics=y"]
+
+# Optional: Uncommenting the foollowing improves compile times, but reduces
+# the amount of debug info to 'line number tables only'.
+# In most cases the gains are negligable, but if you are on macOS and have slow
+# compile times you should see significant gains.
+#[profile.dev]
+#debug = 1