Emit bindgen version in generated header

Update expectations

1 files changed, 8 insertions, 3 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 20997267..22b5594a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2177,9 +2177,14 @@ impl Bindings {
 
     /// Write these bindings as source text to the given `Write`able.
     pub fn write<'a>(&self, mut writer: Box<dyn Write + 'a>) -> io::Result<()> {
-        writer.write(
-            "/* automatically generated by rust-bindgen */\n\n".as_bytes(),
-        )?;
+        if !self.options.disable_header_comment {
+            let version = option_env!("CARGO_PKG_VERSION");
+            let header = format!(
+                "/* automatically generated by rust-bindgen {} */\n\n",
+                version.unwrap_or("(unknown version)")
+            );
+            writer.write(header.as_bytes())?;
+        }
 
         for line in self.options.raw_lines.iter() {
             writer.write(line.as_bytes())?;