if build.is_rust_llvm(target) {
cargo.env("LLVM_RUSTLLVM", "1");
}
+ if let Some(ref cfg_file) = build.flags.config {
+ let cfg_path = t!(PathBuf::from(cfg_file).canonicalize());
+ cargo.env("CFG_LLVM_TOML", cfg_path.into_os_string());
+ }
cargo.env("LLVM_CONFIG", build.llvm_config(target));
let target_config = build.config.target_config.get(target);
if let Some(s) = target_config.and_then(|c| c.llvm_config.as_ref()) {
println!("cargo:rerun-if-changed={}", llvm_config.display());
+ if let Some(cfg_toml) = env::var_os("CFG_LLVM_TOML") {
+ let cfg_path = PathBuf::from(cfg_toml);
+ println!("cargo:rerun-if-changed={}", cfg_path.display());
+ }
+
// Test whether we're cross-compiling LLVM. This is a pretty rare case
// currently where we're producing an LLVM for a different platform than
// what this build script is currently running on.