try expanding an unknown line first

1 files changed, 10 insertions, 1 deletions

diff --git a/src/makefile/mod.rs b/src/makefile/mod.rs
index 9038150..9c4967a 100644
--- a/src/makefile/mod.rs
+++ b/src/makefile/mod.rs
@@ -225,12 +225,21 @@ impl<'a> Makefile<'a> {
 
                 let line_type = LineType::of(&line_tokens);
 
+                // before we actually test it, see if it's only visible after expanding macros
+                let (line_tokens, line_type) = if let LineType::Unknown = line_type {
+                    let line_tokens = TokenString::text(self.expand_macros(&line_tokens, None)?);
+                    let line_type = LineType::of(&line_tokens);
+                    (line_tokens, line_type)
+                } else {
+                    (line_tokens, line_type)
+                };
+
                 match line_type {
                     LineType::Rule => self.read_rule(&line_tokens, line_number, &mut lines_iter)?,
                     LineType::Macro => self.read_macro(&line_tokens, line_number)?,
                     LineType::Unknown => {
                         bail!(
-                            "error: line {}: unknown line {:?}",
+                            "error: line {}: unknown line \"{}\"",
                             line_number,
                             line_tokens
                         );