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-rw-r--r--src/libmain/shared.hh5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libmain/shared.hh b/src/libmain/shared.hh
index a7e46c927d08..62f505189f83 100644
--- a/src/libmain/shared.hh
+++ b/src/libmain/shared.hh
@@ -33,6 +33,11 @@ extern volatile ::sig_atomic_t blockInt;
 
 MakeError(UsageError, nix::Error);
 
+struct RemoveTempRoots 
+{
+    ~RemoveTempRoots();    
+};
+
 }