From 52c5c7f8376c42f8ed4702b60754332864daabf3 Mon Sep 17 00:00:00 2001
From: Melody Horn <melody@boringcactus.com>
Date: Mon, 5 Apr 2021 12:00:13 -0600
Subject: give context for errors when disambiguating a line

---
 src/makefile/input.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/makefile/input.rs b/src/makefile/input.rs
index 316968f..d6cffdf 100644
--- a/src/makefile/input.rs
+++ b/src/makefile/input.rs
@@ -240,7 +240,11 @@ impl<'a, 'parent, R: BufRead> MakefileReader<'a, 'parent, R> {
 
             // 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)?.trim());
+                let line_tokens = TokenString::text(
+                    self.expand_macros(&line_tokens)
+                        .wrap_err_with(|| format!("while parsing line {}", line_number))?
+                        .trim(),
+                );
                 // and let's eval whatever bullshit needs evaling
                 #[cfg(feature = "full")]
                 {
-- 
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