* Automatically remove temporary root files.

src/libmain/shared.cc

@@ -13,6 +13,7 @@ extern "C" {
 }
 
 #include "globals.hh"
+#include "gc.hh"
 #include "shared.hh"
 
 #include "config.h"
@@ -55,6 +56,15 @@ void checkStoreNotSymlink(Path path)
 }
 
 
+struct RemoveTempRoots 
+{
+    ~RemoveTempRoots()
+    {
+        removeTempRoots();
+    }
+};
+
+
 void initDerivationsHelpers();
 
 
@@ -171,6 +181,10 @@ static void initAndRun(int argc, char * * argv)
         else remaining.push_back(arg);
     }
 
+    /* Automatically clean up the temporary roots file when we
+       exit. */
+    RemoveTempRoots removeTempRoots;
+
     run(remaining);
 }