1 files changed, 13 insertions, 0 deletions
diff --git a/src/makefile/macro.rs b/src/makefile/macro.rs
index bb4a72d..f788edc 100644
--- a/src/makefile/macro.rs
+++ b/src/makefile/macro.rs
@@ -124,6 +124,19 @@ impl<'parent, 'lookup> Set<'parent, 'lookup> {
         Ok(result)
     }
 
+    #[cfg(feature = "full")]
+    pub fn origin(&self, name: &str) -> &'static str {
+        match self.data.get(name) {
+            None => self.parent.map_or("undefined", |p| p.origin(name)),
+            Some((Source::Builtin, _)) => "default",
+            Some((Source::Environment, _)) => "environment",
+            // TODO figure out when to return "environment override"
+            Some((Source::File, _)) => "file",
+            Some((Source::CommandLineOrMakeflags, _)) => "command line",
+            // TODO handle override and automatic
+        }
+    }
+
     pub fn with_lookup<'l, 's: 'l>(&'s self, lookup: &'l dyn LookupInternal) -> Set<'s, 'l> {
         Set {
             parent: Some(self),