Make header self-contained

lionel- · lionel- · commit 55048f4b144e · 2025-04-04T09:23:12.000+02:00
diff --git a/src/rlang/env.h b/src/rlang/env.h
@@ -7,6 +7,7 @@
 #include "cnd.h"
 #include "globals.h"
 #include "obj.h"
+#include "sym.h"
 
 #define RLANG_USE_R_EXISTS (R_VERSION < R_Version(4, 2, 0))
 
