let mut build = cc::Build::new();

build

.file("c/lib.c")

.include("include")

.define("SIMSIMD_NATIVE_F16", "0")

.define("SIMSIMD_NATIVE_BF16", "0")

.define("SIMSIMD_DYNAMIC_DISPATCH", "1")

.flag("-O3")

.flag("-std=c99") // Enforce C99 standard

.flag("-pedantic") // Ensure strict compliance with the C standard

.warnings(false);

if build.try_compile("simsimd").is_err() {

print!("cargo:warning=Failed to compile with all SIMD backends...");

let target_arch = std::env::var("CARGO_CFG_TARGET_ARCH").unwrap_or_default();

let flags_to_try = match target_arch.as_str() {

"arm" | "aarch64" => vec![

"SIMSIMD_TARGET_SVE2",

"SIMSIMD_TARGET_SVE_BF16",

"SIMSIMD_TARGET_SVE_F16",

"SIMSIMD_TARGET_SVE_I8",

"SIMSIMD_TARGET_SVE",

"SIMSIMD_TARGET_NEON_BF16",

"SIMSIMD_TARGET_NEON_F16",

"SIMSIMD_TARGET_NEON_I8",

"SIMSIMD_TARGET_NEON",

],

_ => vec![

"SIMSIMD_TARGET_SIERRA",

"SIMSIMD_TARGET_TURIN",

"SIMSIMD_TARGET_SAPPHIRE",

"SIMSIMD_TARGET_GENOA",

"SIMSIMD_TARGET_ICE",

"SIMSIMD_TARGET_SKYLAKE",

"SIMSIMD_TARGET_HASWELL",

],

};

for flag in flags_to_try.iter() {

build.define(flag, "0");

if build.try_compile("simsimd").is_ok() {

break;

}

// Print the failed configuration

println!(

"cargo:warning=Failed to compile after disabling {}, trying next configuration...",

flag

);

}

}

println!("cargo:rerun-if-changed=c/lib.c");

println!("cargo:rerun-if-changed=rust/lib.rs");

println!("cargo:rerun-if-changed=include/simsimd/simsimd.h");

println!("cargo:rerun-if-changed=include/simsimd/dot.h");

println!("cargo:rerun-if-changed=include/simsimd/spatial.h");

println!("cargo:rerun-if-changed=include/simsimd/probability.h");

println!("cargo:rerun-if-changed=include/simsimd/binary.h");

println!("cargo:rerun-if-changed=include/simsimd/types.h");