pass header path

Author: pvdrz

src/lib.rs

@@ -1580,7 +1580,9 @@ impl Builder {
 
         match Bindings::generate(options, input_unsaved_files) {
             Ok(bindings) => Ok(bindings),
-            Err(GenerateError::ShouldRestart) => self.generate(),
+            Err(GenerateError::ShouldRestart { header }) => {
+                self.header(header).generate()
+            }
             Err(GenerateError::Bindgen(err)) => Err(err),
         }
     }
@@ -2294,8 +2296,12 @@ fn ensure_libclang_is_loaded() {}
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 enum GenerateError {
+    /// Error variant raised when bindgen requires to run again with a newly generated header
+    /// input.
     #[allow(dead_code)]
-    ShouldRestart,
+    ShouldRestart {
+        header: String,
+    },
     Bindgen(BindgenError),
 }