* Automatically upgrade <= 0.7 Nix stores to the new schema (so that

  existing user environments continue to work).
* `nix-store --verify': detect incomplete closures.  

1 files changed, 3 insertions, 0 deletions

diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index c7f117129f..b679138624 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -94,6 +94,9 @@ Strings readDirectory(const Path & path);
 string readFile(int fd);
 string readFile(const Path & path);
 
+/* Write a string to a file. */
+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. */
 void deletePath(const Path & path);