30 lines
1.1 KiB
Rust
30 lines
1.1 KiB
Rust
use std::env;
|
|
|
|
fn main() {
|
|
let force_scalar_math = env::var("CARGO_FEATURE_SCALAR_MATH").is_ok();
|
|
let force_packed_vec3 = env::var("CARGO_FEATURE_PACKED_VEC3").is_ok();
|
|
|
|
let target_feature_sse2 = env::var("CARGO_CFG_TARGET_FEATURE")
|
|
.map_or(false, |cfg| cfg.split(',').find(|&f| f == "sse2").is_some());
|
|
|
|
if target_feature_sse2 && !force_scalar_math && !force_packed_vec3 {
|
|
println!("cargo:rustc-cfg=vec3sse2");
|
|
} else {
|
|
if !force_scalar_math && !force_packed_vec3 {
|
|
// simd not available but not explicitly disabled so maintain 16 byte alignment
|
|
println!("cargo:rustc-cfg=vec3f32_align16");
|
|
}
|
|
println!("cargo:rustc-cfg=vec3f32");
|
|
}
|
|
|
|
if target_feature_sse2 && !force_scalar_math {
|
|
println!("cargo:rustc-cfg=vec4sse2");
|
|
} else {
|
|
if !force_scalar_math {
|
|
// simd not available but not explicitly disabled so maintain 16 byte alignment
|
|
println!("cargo:rustc-cfg=vec4f32_align16");
|
|
}
|
|
println!("cargo:rustc-cfg=vec4f32");
|
|
}
|
|
}
|