#![allow(clippy::unusual_byte_groupings)] use std::env; fn main() { if let Ok(v) = env::var("DEP_OPENSSL_VERSION_NUMBER") { let version = u64::from_str_radix(&v, 16).unwrap(); if version >= 0x1_01_00_00_0 { println!("cargo:rustc-cfg=openssl110"); } } }