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-rw-r--r--src/libstore/local-store.hh5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libstore/local-store.hh b/src/libstore/local-store.hh
index 14a826b3a58d..4245156670a8 100644
--- a/src/libstore/local-store.hh
+++ b/src/libstore/local-store.hh
@@ -46,6 +46,7 @@ struct RunningSubstituter
 {
     Pid pid;
     AutoCloseFD to, from, error;
+    FdSource fromBuf;
 };
 
 
@@ -289,6 +290,10 @@ private:
     void startSubstituter(const Path & substituter,
         RunningSubstituter & runningSubstituter);
 
+    string getLineFromSubstituter(RunningSubstituter & run);
+
+    template<class T> T getIntLineFromSubstituter(RunningSubstituter & run);
+
     Path createTempDirInStore();
 
     Path importPath(bool requireSignature, Source & source);