Index: sources/test_regression/25032005/system.cpp
===================================================================
--- sources/test_regression/25032005/system.cpp	(revision 56)
+++ sources/test_regression/25032005/system.cpp	(revision 60)
@@ -103,4 +103,7 @@
     sc_signal<bool> s1("s1"), s2("s2"), s3("s3"), s4("s4"), s5("s5");
 
+    // Setup number of threads open-mp to 1 with the macro threads_omp()
+    threads_omp();
+
     A a("a");
     B b("b");