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-rw-r--r--src/libutil/util.hh1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 87b63f6e998a..746b2dd5859f 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -293,6 +293,7 @@ template<class C> C tokenizeString(const string & s, const string & separators =
 /* Concatenate the given strings with a separator between the
    elements. */
 string concatStringsSep(const string & sep, const Strings & ss);
+string concatStringsSep(const string & sep, const StringSet & ss);
 
 
 /* Remove trailing whitespace from a string. */