| 1 | use std::env; |
|---|---|
| 2 | |
| 3 | fn main() { |
| 4 | println!("cargo:rerun-if-changed=build.rs"); |
| 5 | |
| 6 | // Decide ideal limb width for arithmetic in the float parser. Refer to |
| 7 | // src/lexical/math.rs for where this has an effect. |
| 8 | let target_arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap(); |
| 9 | match target_arch.as_str() { |
| 10 | "aarch64"| "mips64"| "powerpc64"| "x86_64"=> { |
| 11 | println!("cargo:rustc-cfg=limb_width_64"); |
| 12 | } |
| 13 | _ => { |
| 14 | println!("cargo:rustc-cfg=limb_width_32"); |
| 15 | } |
| 16 | } |
| 17 | } |
| 18 |