* `nix-store --gc' prints out the number of bytes freed on stdout

  (even when it is interrupted by a signal).

1 files changed, 4 insertions, 1 deletions

diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 9e7eb11bd16d..9601e65b3c63 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -98,9 +98,12 @@ string readFile(const Path & path);
 void writeFile(const Path & path, const string & s);
 
 /* Delete a path; i.e., in the case of a directory, it is deleted
-   recursively.  Don't use this at home, kids. */
+   recursively.  Don't use this at home, kids.  The second variant
+   returns the number of bytes freed. */
 void deletePath(const Path & path);
 
+void deletePath(const Path & path, unsigned long long & bytesFreed);
+
 /* Make a path read-only recursively. */
 void makePathReadOnly(const Path & path);