don't strip comments in continued lines

i'm not actually sure if this is how GNU make works
but it appears to be the behavior GNU make exhibits

1 files changed, 35 insertions, 11 deletions

diff --git a/src/makefile/input.rs b/src/makefile/input.rs
index 74742f9..345f465 100644
--- a/src/makefile/input.rs
+++ b/src/makefile/input.rs
@@ -439,15 +439,7 @@ impl<'a, 'parent, R: BufRead> MakefileReader<'a, 'parent, R> {
                         Ok(x) => x,
                         Err(err) => return Some((n, Err(err))),
                     };
-                    let line = if settings.strip_comments {
-                        COMMENT
-                            .replace(&line, "$1")
-                            .replace(r"\#", "#")
-                            .trim_end()
-                            .to_owned()
-                    } else {
-                        line
-                    };
+                    // TODO strip comments if it's correct to
                     line_pieces.push(line.trim_start().to_owned());
                 }
             }
@@ -1150,10 +1142,11 @@ pub struct FinishedMakefileReader {
 
 #[cfg(test)]
 mod test {
-    use super::*;
-
     use std::io::Cursor;
 
+    use super::*;
+    use crate::makefile::token::Token;
+
     type R = Result<()>;
 
     #[test]
@@ -1485,4 +1478,35 @@ test: c
         );
         Ok(())
     }
+
+    #[cfg(feature = "full")]
+    #[test]
+    fn shell_comment() -> R {
+        let file = r#"
+FOO=$(shell \
+echo \
+#abc)
+        "#;
+        let args = Args::empty();
+        let makefile = MakefileReader::read(
+            &args,
+            MacroScopeStack::default(),
+            MacroSet::new(),
+            Cursor::new(file),
+            "",
+            Default::default(),
+        )?;
+        let makefile = makefile.finish();
+        assert_eq!(
+            makefile.macros.get_non_recursive("FOO").map(|x| &x.text),
+            Some(&TokenString::from(vec![
+                Token::Text(String::new()),
+                Token::FunctionCall {
+                    name: TokenString::text("shell"),
+                    args: vec![TokenString::text("echo  #abc")],
+                },
+            ]))
+        );
+        Ok(())
+    }
 }