cpu: Fix InstPBTrace inheritance

This patch fixes an issue that prevented gem5 to be built with C++
config and without Python.

diff --git a/src/cpu/inst_pb_trace.hh b/src/cpu/inst_pb_trace.hh
index 326f8b93a71719f100dd029ba0683215f0e3df4f..bdafb6245d550f1d46b12f53842ab7ab783088bb 100644 (file)
--- a/src/cpu/inst_pb_trace.hh
+++ b/src/cpu/inst_pb_trace.hh
@@ -82,7 +82,7 @@ class InstPBTraceRecord : public InstRecord
 
 };
 
-class InstPBTrace : InstTracer
+class InstPBTrace : public InstTracer
 {
  public:
     InstPBTrace(const InstPBTraceParams *p);