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-rw-r--r--src/libutil/util.hh4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 90413b0efe04..87b63f6e998a 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -148,7 +148,9 @@ void printMsg_(Verbosity level, const format & f);
 
 void warnOnce(bool & haveWarned, const format & f);
 
-extern void (*writeToStderr) (const unsigned char * buf, size_t count);
+void writeToStderr(const string & s);
+
+extern void (*_writeToStderr) (const unsigned char * buf, size_t count);
 
 
 /* Wrappers arount read()/write() that read/write exactly the