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Add LLDB_LIB_PATH for overriding --libdir #23

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Merged
waywardmonkeys merged 1 commit into from
Jun 14, 2025
Merged

Add LLDB_LIB_PATH for overriding --libdir #23

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14 changes: 13 additions & 1 deletion build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -46,10 +46,22 @@ fn get_compiler_config() -> Build {
// We use the `llvm-config` utility to get the include and library paths
// as well as the name of the shared library.
println!("cargo:rerun-if-env-changed=LLVM_CONFIG");
println!("cargo:rerun-if-env-changed=LLDB_LIB_PATH");
println!("cargo:rerun-if-env-changed=LLDB_ADDITIONAL_INCLUDE_DIRS");
let llvm_headers_path = get_llvm_output("--includedir");
let llvm_lib_path = get_llvm_output("--libdir");
let lib_name = fs::read_dir(&llvm_lib_path)

// Some systems (ex. NixOS) do not have liblldb.so in llvm-config's libdir.
// As a workaround, allow users to specifiy path to search
// for the aforementioned library.
let lldb_lib_path = match std::env::var_os("LLDB_LIB_PATH") {
Some(path) => &path
.into_string()
.expect("LLDB_LIB_PATH contains invalid Unicode data"),
None => &llvm_lib_path,
};

let lib_name = fs::read_dir(lldb_lib_path)
.expect("failed to stat libdir from llvm-config")
.filter_map(|entry| match_libname(entry.unwrap().file_name().to_str().unwrap()))
.next()
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