Use C-style include guards instead of #pragma once

1 files changed, 4 insertions, 1 deletions

diff --git a/file.h b/file.h
index 831d193..70889ac 100644
--- a/file.h
+++ b/file.h
@@ -1,6 +1,9 @@
-#pragma once
+#ifndef _FILE_H
+#define _FILE_H
 
 #include "editor.h"
 
 void editor_open(struct editor_state* editor, char* filename);
 void editor_save(struct editor_state* editor);
+
+#endif