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-rw-r--r--src/libstd/build.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/libstd/build.rs b/src/libstd/build.rs
index 016e7adb4c9..0831e29bddd 100644
--- a/src/libstd/build.rs
+++ b/src/libstd/build.rs
@@ -97,6 +97,10 @@ fn build_libbacktrace(target: &str) -> Result<(), ()> {
         .file("../libbacktrace/sort.c")
         .file("../libbacktrace/state.c");
 
+    let any_debug = env::var("RUSTC_DEBUGINFO").unwrap_or(String::new()) == "true" ||
+        env::var("RUSTC_DEBUGINFO_LINES").unwrap_or(String::new()) == "true";
+    build.debug(any_debug);
+
     if target.contains("darwin") {
         build.file("../libbacktrace/macho.c");
     } else if target.contains("windows") {