diff --git a/ompi/contrib/vt/vt/ChangeLog b/ompi/contrib/vt/vt/ChangeLog
index 1f14a05b23..647ed0f29a 100644
--- a/ompi/contrib/vt/vt/ChangeLog
+++ b/ompi/contrib/vt/vt/ChangeLog
@@ -1,4 +1,5 @@
 5.12.1openmpi
+	- fixed build issues on MacOS using GCC v4.2
 	- fixed a bug in the MPI wrapper functions MPI_Gatherv and MPI_Scatterv
 	  which occurred due to illegal access to insignificant parameters on
 	  non-root ranks
diff --git a/ompi/contrib/vt/vt/config_bottom.h b/ompi/contrib/vt/vt/config_bottom.h
index 03c6f86ea9..5619819130 100644
--- a/ompi/contrib/vt/vt/config_bottom.h
+++ b/ompi/contrib/vt/vt/config_bottom.h
@@ -4,6 +4,13 @@
 
 #include "util/util.h"
 
+/* use own implementation of assert() to work around a compiler bug
+   (seen on MacOS using GCC v4.2.1):
+   The linker results in an undefined reference to ___builtin_expect()
+   when using assert() within OpenMP-parallel regions. */
+#undef assert
+#define assert vt_assert
+
 #if !(defined(HAVE_ASPRINTF) && HAVE_ASPRINTF)
 # undef asprintf
 # define asprintf vt_asprintf
diff --git a/ompi/contrib/vt/vt/tools/vtdyn/vt_dyn.cc b/ompi/contrib/vt/vt/tools/vtdyn/vt_dyn.cc
index b8b4adcf23..954989cc41 100644
--- a/ompi/contrib/vt/vt/tools/vtdyn/vt_dyn.cc
+++ b/ompi/contrib/vt/vt/tools/vtdyn/vt_dyn.cc
@@ -14,7 +14,6 @@
 #include "vt_dyn.h"
 
 #include <fstream>
-#include <assert.h>
 #include <ctype.h>
 #include <inttypes.h>
 #include <signal.h>
diff --git a/ompi/contrib/vt/vt/tools/vtfilter/old/vt_tracefilter.cc b/ompi/contrib/vt/vt/tools/vtfilter/old/vt_tracefilter.cc
index 3969e55b8c..07c60cda93 100644
--- a/ompi/contrib/vt/vt/tools/vtfilter/old/vt_tracefilter.cc
+++ b/ompi/contrib/vt/vt/tools/vtfilter/old/vt_tracefilter.cc
@@ -46,7 +46,6 @@
 #include "vt_filthandler.h"
 
 #include <fstream>
-#include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter.cc b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter.cc
index 3baa31abe3..dee0276a85 100644
--- a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter.cc
+++ b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter.cc
@@ -18,7 +18,6 @@
 
 #include <iostream>
 
-#include <assert.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_common.cc b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_common.cc
index b041811ddf..b52d98c449 100644
--- a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_common.cc
+++ b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_common.cc
@@ -15,7 +15,6 @@
 
 #include <iostream>
 
-#include <assert.h>
 #include <stdio.h>
 
 
diff --git a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_gen.cc b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_gen.cc
index 8514180bed..f3aa70a745 100644
--- a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_gen.cc
+++ b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_gen.cc
@@ -16,7 +16,6 @@
 #include <iostream>
 #include <sstream>
 
-#include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_trc.cc b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_trc.cc
index 48717fc275..9d48dea3e8 100644
--- a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_trc.cc
+++ b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_trc.cc
@@ -19,7 +19,6 @@
 #include <iostream>
 #include <list>
 
-#include <assert.h>
 #include <unistd.h>
 #include <sys/stat.h>
 #include <sys/types.h>
diff --git a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_trc_hdlr.cc b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_trc_hdlr.cc
index 1f8e87785f..291ec34ae5 100644
--- a/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_trc_hdlr.cc
+++ b/ompi/contrib/vt/vt/tools/vtfilter/vt_filter_trc_hdlr.cc
@@ -15,8 +15,6 @@
 
 #include <iostream>
 
-#include <assert.h>
-
 // Define this macro to avoid writing of events which have relationships to
 // disabled processes.
 // For example: Do not write a send message event where its receive process is
diff --git a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_aevents.cc b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_aevents.cc
index 394f9078cf..24f00f32ca 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_aevents.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_aevents.cc
@@ -19,8 +19,6 @@
 
 #include <iostream>
 
-#include <assert.h>
-
 //////////////////// class HooksAsyncEventsC ////////////////////
 
 // class's instance object to allow access from static member methods
diff --git a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_base.cc b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_base.cc
index f6a00280da..007a9ab373 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_base.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_base.cc
@@ -14,8 +14,6 @@
 
 #include "vt_inttypes.h"
 
-#include <assert.h>
-
 //////////////////// class HooksBaseC ////////////////////
 
 // public methods
diff --git a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_base.h b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_base.h
index 4cf4b345c4..7e689c55c1 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_base.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_base.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_HOOKS_BASE_H_
 #define _VT_UNIFY_HOOKS_BASE_H_
 
+#include "config.h"
+
 #include "vt_unify_hooks.h"
 
 //
diff --git a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_margins.cc b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_margins.cc
index c3731ddb70..13f0f6b4c5 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_margins.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_margins.cc
@@ -13,8 +13,6 @@
 #include "vt_unify.h"
 #include "vt_unify_hooks_margins.h"
 
-#include <assert.h>
-
 //////////////////// class HooksProcessMarginsC ////////////////////
 
 // public methods
diff --git a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_msgmatch.cc b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_msgmatch.cc
index 3f1afd7543..5f18ed1f98 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_msgmatch.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/hooks/vt_unify_hooks_msgmatch.cc
@@ -23,8 +23,6 @@
 #include <map>
 #include <vector>
 
-#include <assert.h>
-
 //////////////////// class HooksMsgMatchC ////////////////////
 
 // public methods
diff --git a/ompi/contrib/vt/vt/tools/vtunify/mpi/vt_unify_mpi.c b/ompi/contrib/vt/vt/tools/vtunify/mpi/vt_unify_mpi.c
index cfcf0cf317..c2d4620619 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/mpi/vt_unify_mpi.c
+++ b/ompi/contrib/vt/vt/tools/vtunify/mpi/vt_unify_mpi.c
@@ -16,7 +16,6 @@
 
 #include "mpi.h"
 
-#include <assert.h>
 #include <stdlib.h>
 
 #define MAX_TYPES 50
diff --git a/ompi/contrib/vt/vt/tools/vtunify/mpi/vt_unify_mpi.h b/ompi/contrib/vt/vt/tools/vtunify/mpi/vt_unify_mpi.h
index 53f9a7950c..535aed7d10 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/mpi/vt_unify_mpi.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/mpi/vt_unify_mpi.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_MPI_H_
 #define _VT_UNIFY_MPI_H_
 
+#include "config.h"
+
 #include "vt_defs.h" /* to get VT_MPI_INT */
 
 /* use MPI's profile interface for the library version of the unifier */
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify.cc b/ompi/contrib/vt/vt/tools/vtunify/vt_unify.cc
index 11a895eca6..1acbba982f 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify.cc
@@ -35,7 +35,6 @@
 #include <string>
 #include <vector>
 
-#include <assert.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify.h
index 4963d3ea45..238cf86059 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify.h
@@ -31,8 +31,6 @@
 #include <string>
 #include <vector>
 
-#include <assert.h>
-
 #if defined(HAVE_OMP) && HAVE_OMP
 #  ifdef VT_LIB
 #     undef HAVE_OMP
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs.cc b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs.cc
index 898e2bd5a6..b18e43f99e 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs.cc
@@ -22,7 +22,6 @@
 #include <iostream>
 #include <sstream>
 
-#include <assert.h>
 #include <stdio.h>
 #include <string.h>
 #include <time.h>
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs.h
index 31da714373..79aa0ad84f 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_DEFS_H_
 #define _VT_UNIFY_DEFS_H_
 
+#include "config.h"
+
 #include "vt_unify_defs_recs.h"
 #include "vt_unify_lvector.hh"
 #include "vt_unify_usrcom.h"
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs_recs.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs_recs.h
index 88f0cc916d..18e17e0f80 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs_recs.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_defs_recs.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_DEFS_RECS_H_
 #define _VT_UNIFY_DEFS_RECS_H_
 
+#include "config.h"
+
 #include "vt_unify.h"
 
 #include "vt_inttypes.h"
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_esync.cc b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_esync.cc
index 41e0e2fec0..aef433edc4 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_esync.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_esync.cc
@@ -21,7 +21,6 @@
 #include <string>
 #include <vector>
 
-#include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_esync.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_esync.h
index 5c736220eb..daac74fdc8 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_esync.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_esync.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_ESYNC_H_
 #define _VT_UNIFY_ESYNC_H_
 
+#include "config.h"
+
 #include "vt_inttypes.h"
 
 #include <list>
@@ -20,8 +22,6 @@
 #include <string>
 #include <vector>
 
-#include <assert.h>
-
 //
 // ETimeSyncC class
 //
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_events_stats.cc b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_events_stats.cc
index b4660b6acd..7a4dcfc236 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_events_stats.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_events_stats.cc
@@ -19,8 +19,6 @@
 
 #include <iostream>
 
-#include <assert.h>
-
 // instances of class EventsAndStatsC
 //
 EventsAndStatsC * theEvents = 0;
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_events_stats.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_events_stats.h
index 2ae8477fd5..a1b7385e25 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_events_stats.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_events_stats.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_EVENTS_STATS_H_
 #define _VT_UNIFY_EVENTS_STATS_H_
 
+#include "config.h"
+
 //
 // EventsAndStatsC class
 //
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_handlers.cc b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_handlers.cc
index 2c638035a0..837638c61c 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_handlers.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_handlers.cc
@@ -21,8 +21,6 @@
 
 #include "otf.h"
 
-#include <assert.h>
-
 void
 HandleKeyValueList( const uint32_t & proc, OTF_KeyValueList * kvs )
 {
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_handlers.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_handlers.h
index b24ed71234..0ed20136c5 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_handlers.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_handlers.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_HANDLERS_H_
 #define _VT_UNIFY_HANDLERS_H_
 
+#include "config.h"
+
 #include "vt_unify_defs_recs.h"
 #include "vt_unify_lvector.hh"
 #include "vt_unify_markers.h"
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_hooks.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_hooks.h
index 2dcb950ddb..758fa97231 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_hooks.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_hooks.h
@@ -13,12 +13,12 @@
 #ifndef _VT_UNIFY_HOOKS_H_
 #define _VT_UNIFY_HOOKS_H_
 
+#include "config.h"
+
 #include "vt_inttypes.h"
 
 #include <vector>
 
-#include <assert.h>
-
 // generic hooks' identifier bits
 //
 enum
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_lvector.hh b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_lvector.hh
index 1bc21f4399..9f6a5778a6 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_lvector.hh
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_lvector.hh
@@ -13,9 +13,9 @@
 #ifndef _VT_UNIFY_LVECTOR_HH_
 #define _VT_UNIFY_LVECTOR_HH_
 
-#include <vector>
+#include "config.h"
 
-#include <assert.h>
+#include <vector>
 
 //
 // LargeVectorC class
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_markers.cc b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_markers.cc
index c785590e30..59a7d4c5d4 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_markers.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_markers.cc
@@ -20,8 +20,6 @@
 #include <algorithm>
 #include <iostream>
 
-#include <assert.h>
-
 MarkersC * theMarkers = 0; // instance of class MarkersC
 
 //////////////////// class MarkersC ////////////////////
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_markers.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_markers.h
index c42e47b1bb..e1df6aa216 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_markers.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_markers.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_MARKERS_H_
 #define _VT_UNIFY_MARKERS_H_
 
+#include "config.h"
+
 #include "vt_inttypes.h"
 
 #include "vt_unify.h"
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_sync.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_sync.h
index acec2ec40e..9c7d46ca6e 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_sync.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_sync.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_SYNC_H_
 #define _VT_UNIFY_SYNC_H_
 
+#include "config.h"
+
 #include "vt_unify.h"
 
 #ifdef VT_ETIMESYNC
@@ -23,8 +25,6 @@
 
 #include <map>
 
-#include <assert.h>
-
 //
 // TimeSyncC class
 //
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac.cc b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac.cc
index e01c38efbc..5e0978d86b 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac.cc
@@ -13,8 +13,6 @@
 #include "vt_unify.h"
 #include "vt_unify_tkfac.h"
 
-#include <assert.h>
-
 TokenFactoryC * theTokenFactory = 0; // instance of class TokenFactoryC
 
 //////////////////// class TokenFactoryC ////////////////////
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac.h
index d418800c78..1670a4f0e3 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_TKFAC_H_
 #define _VT_UNIFY_TKFAC_H_
 
+#include "config.h"
+
 #include "vt_unify_defs_recs.h"
 #include "vt_unify_tkfac_scope.h"
 
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac_scope.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac_scope.h
index 7d3b345b6f..cc386cf186 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac_scope.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_tkfac_scope.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_TKFAC_SCOPE_H_
 #define _VT_UNIFY_TKFAC_SCOPE_H_
 
+#include "config.h"
+
 #include "vt_unify.h"
 
 #include <algorithm>
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_usrcom.cc b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_usrcom.cc
index c4fff7cde8..205ced38a1 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_usrcom.cc
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_usrcom.cc
@@ -13,8 +13,6 @@
 #include "vt_unify.h"
 #include "vt_unify_usrcom.h"
 
-#include <assert.h>
-
 UserComC * theUserCom = 0; // instance of class UserComC
 
 //////////////////// class UserComC ////////////////////
diff --git a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_usrcom.h b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_usrcom.h
index 9c222b875d..90712004a2 100644
--- a/ompi/contrib/vt/vt/tools/vtunify/vt_unify_usrcom.h
+++ b/ompi/contrib/vt/vt/tools/vtunify/vt_unify_usrcom.h
@@ -13,6 +13,8 @@
 #ifndef _VT_UNIFY_USRCOM_H_
 #define _VT_UNIFY_USRCOM_H_
 
+#include "config.h"
+
 #include "vt_inttypes.h"
 
 #include <map>
diff --git a/ompi/contrib/vt/vt/tools/vtwrapper/vt_wrapper.cc b/ompi/contrib/vt/vt/tools/vtwrapper/vt_wrapper.cc
index bca5d7b4d6..6bf7d08dfd 100644
--- a/ompi/contrib/vt/vt/tools/vtwrapper/vt_wrapper.cc
+++ b/ompi/contrib/vt/vt/tools/vtwrapper/vt_wrapper.cc
@@ -13,6 +13,7 @@
 #include "vt_inttypes.h"
 
 #include "util/installdirs.h"
+#include "util/util.h"
 
 #include <iostream>
 #include <fstream>
@@ -21,7 +22,6 @@
 #include <string>
 #include <vector>
 
-#include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -1316,7 +1316,7 @@ doWrap()
       //
       std::string cpp_file = src_file;
       si = cpp_file.rfind( '.' );
-      assert( si != std::string::npos );
+      vt_assert( si != std::string::npos );
       cpp_file.insert( si, ".cpp" );
 
       files_to_remove.push_back( cpp_file );
@@ -1350,7 +1350,7 @@ doWrap()
 
       std::string pomp_file = src_file;
       si = pomp_file.rfind( '.' );
-      assert( si != std::string::npos );
+      vt_assert( si != std::string::npos );
       pomp_file.insert( si, ".pomp" );
 
       // convert Fortran source file suffix to upper case, in order to
@@ -1401,7 +1401,7 @@ doWrap()
       if( si != std::string::npos )
         pdb_file = src_file.substr( si+1 );
       si = pdb_file.rfind( '.' );
-      assert( si != std::string::npos );
+      vt_assert( si != std::string::npos );
       pdb_file.replace( si, 4, ".pdb" );
 
       files_to_remove.push_back( pdb_file );
@@ -1411,7 +1411,7 @@ doWrap()
 
       std::string tau_file = src_file;
       si = tau_file.rfind( '.' );
-      assert( si != std::string::npos );
+      vt_assert( si != std::string::npos );
       tau_file.insert( si, ".tau" );
 
       // convert Fortran source file suffix to upper case, in order to
@@ -1481,7 +1481,7 @@ doWrap()
         obj_file = src_file.substr( si+1 );
 
       si = obj_file.rfind( '.' );
-      assert( si != std::string::npos );
+      vt_assert( si != std::string::npos );
       obj_file = obj_file.substr( 0, si ) + ".o";
 
       obj_files_to_rename[obj_file] = Config.mod_files[i].second;
@@ -2068,14 +2068,14 @@ ConfigS::setCompilerCmd( const std::string& cmd )
 void
 ConfigS::addCompilerArg( const std::string& arg )
 {
-  assert( arg.length() > 0 );
+  vt_assert( arg.length() > 0 );
   addOrSetStringList( Config.comp_args, arg );
 }
 
 void
 ConfigS::addCompilerLib( const std::string& lib )
 {
-  assert( lib.length() > 0 );
+  vt_assert( lib.length() > 0 );
   addOrSetStringList( Config.comp_libs, lib );
 }
 
@@ -2096,7 +2096,7 @@ ConfigS::addModSrcFile( const std::string& file )
   // create object file name of source file
   //
   si = file_base.rfind( '.' );
-  assert( si != std::string::npos );
+  vt_assert( si != std::string::npos );
   file_obj = file_base.substr( 0, si ) + ".o";
 
   // store source/object file name for later processing by OPARI and/or TAU
@@ -2106,7 +2106,7 @@ ConfigS::addModSrcFile( const std::string& file )
   //
 
   si = file.rfind( '.' );
-  assert( si != std::string::npos );
+  vt_assert( si != std::string::npos );
 
   std::string base = file.substr( 0, si );
   std::string suffix = file.substr( si );
@@ -2160,28 +2160,28 @@ ConfigS::setOpariRcFile( const std::string& file )
 void
 ConfigS::addOpariArg( const std::string& arg )
 {
-  assert( arg.length() > 0 );
+  vt_assert( arg.length() > 0 );
   addOrSetStringList( Config.opari_args, arg, arg[0] == '!' );
 }
 
 void
 ConfigS::addTauinstArg( const std::string& arg )
 {
-  assert( arg.length() > 0 );
+  vt_assert( arg.length() > 0 );
   addOrSetStringList( Config.tauinst_args, arg, arg[0] == '!' );
 }
 
 void
 ConfigS::addTauinstParseArg( const std::string& arg )
 {
-  assert( arg.length() > 0 );
+  vt_assert( arg.length() > 0 );
   addOrSetStringList( Config.tauinst_parseargs, arg, arg[0] == '!' );
 }
 
 void
 ConfigS::addPrepFlag( const std::string& flag )
 {
-  assert( flag.length() > 0 );
+  vt_assert( flag.length() > 0 );
   addOrSetStringList( Config.prep_flags, flag, flag[0] == '!' );
 }
 
@@ -2281,7 +2281,7 @@ ConfigS::setInstAvail( const std::string& type )
 bool
 ConfigS::setInstType( const InstTypeT type )
 {
-  assert( inst_avail != 0 );
+  vt_assert( inst_avail != 0 );
 
   // instrumentation available ?
   if( !isInstAvail( type ) )
diff --git a/ompi/contrib/vt/vt/util/util.c b/ompi/contrib/vt/vt/util/util.c
index 0ede35cb68..5108a71dc2 100644
--- a/ompi/contrib/vt/vt/util/util.c
+++ b/ompi/contrib/vt/vt/util/util.c
@@ -172,6 +172,12 @@ static int guess_strlen(const char* fmt, va_list ap)
 }
 
 
+void vt_assert_fail(const char* file, int line, const char* expr)
+{
+  printf("%s:%u: failed assertion `%s'\n", file, line, expr);
+  abort();
+}
+
 int vt_asprintf(char** ptr, const char* fmt, ...)
 {
   int length;
diff --git a/ompi/contrib/vt/vt/util/util.h b/ompi/contrib/vt/vt/util/util.h
index 3e94522070..2f91a7bcd1 100644
--- a/ompi/contrib/vt/vt/util/util.h
+++ b/ompi/contrib/vt/vt/util/util.h
@@ -35,6 +35,9 @@
 #include <stdarg.h>
 #include <stdlib.h>
 
+#define vt_assert(expr) if(!(expr)) vt_assert_fail(__FILE__, __LINE__, #expr);
+
+EXTERN void vt_assert_fail(const char* file, int line, const char* expr);
 EXTERN int vt_asprintf(char** ptr, const char* fmt, ...);
 EXTERN int vt_snprintf(char* str, size_t size, const char* fmt, ...);
 EXTERN int vt_vasprintf(char** ptr, const char* fmt, va_list ap);
diff --git a/ompi/contrib/vt/vt/vtlib/vt_comp_openuh.c b/ompi/contrib/vt/vt/vtlib/vt_comp_openuh.c
index b323452b05..47c5546662 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_comp_openuh.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_comp_openuh.c
@@ -119,7 +119,7 @@ static void register_region(struct profile_gen_struct* d, uint8_t rtype)
         strncpy(stname, "do_while", 8+1);
         break;
       default:
-        vt_assert(0);
+        vt_libassert(0);
         break;
     }
 
diff --git a/ompi/contrib/vt/vt/vtlib/vt_dyninst.c b/ompi/contrib/vt/vt/vtlib/vt_dyninst.c
index 280b559188..13bf6b389a 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_dyninst.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_dyninst.c
@@ -72,7 +72,7 @@ void VT_Dyn_start(uint32_t index, char* name, char* fname, int lno)
   uint64_t time;
   uint32_t* rid;
 
-  vt_assert(index < VT_MAX_DYNINST_REGIONS);
+  vt_libassert(index < VT_MAX_DYNINST_REGIONS);
 
   /* Ignore events if VT is initializing */
   if( !dyn_init && !vt_is_alive ) return;
@@ -128,7 +128,7 @@ void VT_Dyn_end(uint32_t index)
 {
   uint64_t time;
 
-  vt_assert(index < VT_MAX_DYNINST_REGIONS);
+  vt_libassert(index < VT_MAX_DYNINST_REGIONS);
 
   /* If VampirTrace already finalized, return */
   if ( !vt_is_alive ) return;
diff --git a/ompi/contrib/vt/vt/vtlib/vt_error.c b/ompi/contrib/vt/vt/vtlib/vt_error.c
index bab0e94166..30c4da3b0e 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_error.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_error.c
@@ -50,7 +50,7 @@ static void vt_print_msg(const char* prefix, const char* fmt, va_list az)
   fflush(NULL);
 }
 
-void vt_assert_impl(const char* f, int l, const char* expr)
+void vt_libassert_fail(const char* f, int l, const char* expr)
 {
   vt_iowrap_externals_init();
   libc_fprintf(stderr, "%s: FATAL: %s:%d: Assertion `%s' failed\n\nPlease report this incident to " PACKAGE_BUGREPORT "\n",
diff --git a/ompi/contrib/vt/vt/vtlib/vt_error.h b/ompi/contrib/vt/vt/vtlib/vt_error.h
index c96f4e6e88..ca2c0fac29 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_error.h
+++ b/ompi/contrib/vt/vt/vtlib/vt_error.h
@@ -24,8 +24,9 @@
 /* set process id/rank for messages */
 EXTERN void vt_error_pid(const int pid);
 
-#define vt_assert(expr) if(!(expr)) vt_assert_impl(__FILE__, __LINE__, #expr);
-EXTERN void vt_assert_impl(const char* f, int l, const char* expr);
+/* abort if assertion is false */
+#define vt_libassert(expr) if(!(expr)) vt_libassert_fail(__FILE__, __LINE__, #expr);
+EXTERN void vt_libassert_fail(const char* f, int l, const char* expr);
 
 /* abort and system error message */
 #define vt_error() vt_error_impl(__FILE__, __LINE__)
diff --git a/ompi/contrib/vt/vt/vtlib/vt_esync.c b/ompi/contrib/vt/vt/vtlib/vt_esync.c
index b2fb57fb8e..4786e15842 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_esync.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_esync.c
@@ -305,7 +305,7 @@ void vt_esync_app_uctl_data(char** data)
   size_t size;
   uint32_t i;
 
-  vt_assert(*data != NULL);
+  vt_libassert(*data != NULL);
 
   size = strlen(*data);
 
diff --git a/ompi/contrib/vt/vt/vtlib/vt_fmpiconst.c b/ompi/contrib/vt/vt/vtlib/vt_fmpiconst.c
index 6dc160fcb0..fe25d1e806 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_fmpiconst.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_fmpiconst.c
@@ -77,25 +77,25 @@ VT_DECLDEF(void vt_get_mpi_f_statuses_ignore_cb_f(void* addr1, void* addr2)) {
 void vt_fmpiconst_init()
 {
   vt_get_mpi_f_bottom___();
-  vt_assert(vt_mpi_f_bottom_addr != NULL);
+  vt_libassert(vt_mpi_f_bottom_addr != NULL);
   vt_cntl_msg(2, "Detected address of MPI_BOTTOM=%x",
               vt_mpi_f_bottom_addr);
 #if (defined(HAVE_DECL_MPI_IN_PLACE) && HAVE_DECL_MPI_IN_PLACE)
   vt_get_mpi_f_in_place___();
-  vt_assert(vt_mpi_f_in_place_addr != NULL);
+  vt_libassert(vt_mpi_f_in_place_addr != NULL);
   vt_cntl_msg(2, "Detected address of MPI_IN_PLACE=%x",
               vt_mpi_f_in_place_addr);
 #endif /* HAVE_DECL_MPI_IN_PLACE */
   vt_get_mpi_f_statuses_ignore___();
-  vt_assert(vt_mpi_f_status_ignore_addr != NULL);
+  vt_libassert(vt_mpi_f_status_ignore_addr != NULL);
   vt_cntl_msg(2, "Detected address of MPI_F_STATUS_IGNORE=%x",
               vt_mpi_f_status_ignore_addr);
-  vt_assert(vt_mpi_f_statuses_ignore_addr != NULL);
+  vt_libassert(vt_mpi_f_statuses_ignore_addr != NULL);
   vt_cntl_msg(2, "Detected address of MPI_F_STATUSES_IGNORE=%x",
               vt_mpi_f_statuses_ignore_addr);
 #if !(defined(HAVE_DECL_MPI_STATUS_SIZE) && HAVE_DECL_MPI_STATUS_SIZE)
   vt_get_mpi_status_size___(&vt_mpi_status_size);
-  vt_assert(vt_mpi_status_size > 0);
+  vt_libassert(vt_mpi_status_size > 0);
   vt_cntl_msg(2, "Detected value of MPI_STATUS_SIZE=%d",
               vt_mpi_status_size);
 #endif /* HAVE_DECL_MPI_STATUS_SIZE */
diff --git a/ompi/contrib/vt/vt/vtlib/vt_fork.c b/ompi/contrib/vt/vt/vtlib/vt_fork.c
index 38f55fe56d..a5d3ec6e8a 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_fork.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_fork.c
@@ -58,7 +58,7 @@ static int get_new_trcid()
   char tmp[10] = "";
   uint8_t do_unlock = 1;
 
-  vt_assert(trcid_filename[0] != '\0');
+  vt_libassert(trcid_filename[0] != '\0');
 
   VT_SUSPEND_IO_TRACING(VT_CURRENT_THREAD);
 
@@ -131,7 +131,7 @@ void vt_fork_finalize()
 
 void vt_fork(pid_t pid)
 {
-  vt_assert(pid != -1);
+  vt_libassert(pid != -1);
 
   fork_performed = 1;
 
@@ -195,7 +195,7 @@ uint32_t vt_fork_get_num_childs_tot()
     int fd;
     char tmp[16] = "";
 
-    vt_assert(trcid_filename[0] != '\0');
+    vt_libassert(trcid_filename[0] != '\0');
 
     VT_SUSPEND_IO_TRACING(VT_CURRENT_THREAD);
 
@@ -207,9 +207,9 @@ uint32_t vt_fork_get_num_childs_tot()
     if ( read(fd, tmp, 16) == -1 )
       vt_error_msg("Cannot read file %s: %s", trcid_filename, strerror(errno));
 
-    vt_assert(tmp[0] != '\0');
+    vt_libassert(tmp[0] != '\0');
     nchilds_tot = atoi(tmp);
-    vt_assert(nchilds_tot > 0);
+    vt_libassert(nchilds_tot > 0);
 
     /* close temp. id file */
     close(fd);
@@ -228,7 +228,7 @@ char* vt_fork_get_trcid_filename()
 {
   char* filename;
 
-  vt_assert(trcid_filename[0] != '\0');
+  vt_libassert(trcid_filename[0] != '\0');
 
   filename = strdup(trcid_filename);
   if ( filename == NULL )
diff --git a/ompi/contrib/vt/vt/vtlib/vt_getcpu.c b/ompi/contrib/vt/vt/vtlib/vt_getcpu.c
index d3a2a8b7c6..81afb84958 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_getcpu.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_getcpu.c
@@ -26,7 +26,7 @@ uint32_t vt_getcpu_cid = 0;
 
 void vt_getcpu_init()
 {
-  vt_assert(vt_misc_cgid != 0);
+  vt_libassert(vt_misc_cgid != 0);
 
   /* write counter definition */
   vt_getcpu_cid = vt_def_counter(VT_CURRENT_THREAD, "CPU_ID", "#",
diff --git a/ompi/contrib/vt/vt/vtlib/vt_iowrap_helper.c b/ompi/contrib/vt/vt/vtlib/vt_iowrap_helper.c
index 6d1ab43971..46cac9412e 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_iowrap_helper.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_iowrap_helper.c
@@ -38,7 +38,7 @@ static void store_vampir_file_id(int fd, uint32_t file_id,
 {
   vampir_file_t *file_ptr;
 
-  vt_assert( (fd < max_open_files) && (fd >= 0) );
+  vt_libassert( (fd < max_open_files) && (fd >= 0) );
   file_ptr = &fd_to_vampirid[fd];
   file_ptr->vampir_file_id = file_id;
   file_ptr->vampir_file_group_id = file_group_id;
@@ -49,7 +49,7 @@ vampir_file_t *get_vampir_file(int fd)
 {
   vampir_file_t *file_ptr;
 
-  vt_assert( (fd < max_open_files) && (fd >= 0) );
+  vt_libassert( (fd < max_open_files) && (fd >= 0) );
   file_ptr = &fd_to_vampirid[fd];
   if( file_ptr->vampir_file_id == 0 ) {
     return &unknown_fd_vampir_file;
@@ -77,7 +77,7 @@ void vt_iofile_open(const char* fname, int fd)
   uint32_t gid;
 
   /* fprintf( stderr, "opening file: %s\n", fname); */
-  vt_assert( (fd < max_open_files) && (fd >= 0) );
+  vt_libassert( (fd < max_open_files) && (fd >= 0) );
   gid=(fd<3) ? file_group_id_stdio : file_group_id_rest;
 #if defined (VT_MT) || defined (VT_HYB) || defined (VT_JAVA)
   VTTHRD_LOCK_IDS();
@@ -92,7 +92,7 @@ void vt_iofile_open(const char* fname, int fd)
 /** Mark the fd as closed */
 void vt_iofile_close(int fd)
 {
-  vt_assert( (fd < max_open_files) && (fd >= 0) );
+  vt_libassert( (fd < max_open_files) && (fd >= 0) );
   fd_to_vampirid[fd].vampir_file_id = 0;
 }
 
@@ -115,7 +115,7 @@ uint32_t vt_iofile_id(const char* fname)
 
 void vt_iofile_dupfd(int oldfd, int newfd)
 {
-  vt_assert( (newfd < max_open_files) && (newfd >=0) &&
+  vt_libassert( (newfd < max_open_files) && (newfd >=0) &&
              (oldfd < max_open_files) && (oldfd >=0) );
   fd_to_vampirid[newfd] = fd_to_vampirid[oldfd];
   fd_to_vampirid[newfd].handle = VTTHRD_IO_NEXT_HANDLE(VTTHRD_MY_VTTHRD);
diff --git a/ompi/contrib/vt/vt/vtlib/vt_java.c b/ompi/contrib/vt/vt/vtlib/vt_java.c
index 44343b1461..62ed47e4ab 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_java.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_java.c
@@ -823,7 +823,7 @@ void vt_java_get_thread_name(jvmtiEnv* jvmti, jthread thread,
   jvmtiError      error;
 
   if ( jvmti == NULL ) jvmti = vt_jvmti_agent->jvmti;
-  vt_assert(jvmti != NULL);
+  vt_libassert(jvmti != NULL);
 
   /* initialize thread name */
   strcpy(tname, "Unknown");
@@ -851,7 +851,7 @@ void vt_java_get_thread_name(jvmtiEnv* jvmti, jthread thread,
 void vt_java_check_error(jvmtiEnv* jvmti, jvmtiError error, const char* str)
 {
   if ( jvmti == NULL ) jvmti = vt_jvmti_agent->jvmti;
-  vt_assert(jvmti != NULL);
+  vt_libassert(jvmti != NULL);
 
   if ( error != JVMTI_ERROR_NONE )
   {
diff --git a/ompi/contrib/vt/vt/vtlib/vt_libwrap.c b/ompi/contrib/vt/vt/vtlib/vt_libwrap.c
index 164f5f2cee..1b474e9dc1 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_libwrap.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_libwrap.c
@@ -199,7 +199,7 @@ void VTLibwrap_delete(VTLibwrap** lw)
 {
   uint32_t i;
 
-  vt_assert(*lw);
+  vt_libassert(*lw);
 
   /* close all opened handles */
   for( i = 0; i < (*lw)->handlen; i++ )
@@ -236,7 +236,7 @@ void VTLibwrap_func_init(const VTLibwrap* lw, const char* func,
 {
   uint32_t i;
 
-  vt_assert(lw);
+  vt_libassert(lw);
 
   VT_MEMHOOKS_OFF();
 
@@ -334,13 +334,13 @@ void VTLibwrap_func_start(const VTLibwrap* lw, const int funcid)
 {
   uint64_t time;
 
-  vt_assert(lw);
+  vt_libassert(lw);
 
   if( !vt_is_alive ) return;
 
   VT_MEMHOOKS_OFF();
 
-  vt_assert(funcid != VT_LIBWRAP_NOID);
+  vt_libassert(funcid != VT_LIBWRAP_NOID);
 
   time = vt_pform_wtime();
 
@@ -353,13 +353,13 @@ void VTLibwrap_func_end(const VTLibwrap* lw, const int funcid)
 {
   uint64_t time;
 
-  vt_assert(lw);
+  vt_libassert(lw);
 
   if( !vt_is_alive ) return;
 
   VT_MEMHOOKS_OFF();
 
-  vt_assert(funcid != VT_LIBWRAP_NOID);
+  vt_libassert(funcid != VT_LIBWRAP_NOID);
 
   time = vt_pform_wtime();
 
diff --git a/ompi/contrib/vt/vt/vtlib/vt_mpireg.c b/ompi/contrib/vt/vt/vtlib/vt_mpireg.c
index 87103f3c73..8f37fde3e2 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_mpireg.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_mpireg.c
@@ -48,7 +48,7 @@ void vt_mpi_register()
 
 void vt_mpi_register_remain()
 {
-  vt_assert( mpi_fid != (uint32_t)-1 );
+  vt_libassert( mpi_fid != (uint32_t)-1 );
 
   /* include generated function registry */
 # include "vt_mpireg.gen.c"
diff --git a/ompi/contrib/vt/vt/vtlib/vt_otf_gen.c b/ompi/contrib/vt/vt/vtlib/vt_otf_gen.c
index 38d72b11f7..3d30c027b5 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_otf_gen.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_otf_gen.c
@@ -475,7 +475,7 @@ void VTGen_flush(VTGen* gen, uint8_t lastFlush,
             ctype = OTF_COLLECTIVE_TYPE_ONE2ALL;
             break;
           default:
-            vt_assert(0);
+            vt_libassert(0);
         }
 
         if (OTF_WStream_writeDefCollectiveOperation(gen->filestream, entry->cid,
@@ -594,7 +594,7 @@ void VTGen_flush(VTGen* gen, uint8_t lastFlush,
             mtype = OTF_MARKER_TYPE_HINT;
             break;
           default:
-            vt_assert(0);
+            vt_libassert(0);
         }
 
         if (OTF_WStream_writeDefMarker(gen->filestream, entry->mid,
@@ -634,7 +634,7 @@ void VTGen_flush(VTGen* gen, uint8_t lastFlush,
             vtype = OTF_DOUBLE;
             break;
           default:
-            vt_assert(0);
+            vt_libassert(0);
         }
 
         if (OTF_WStream_writeDefKeyValue(gen->filestream, entry->kid, vtype,
@@ -792,7 +792,7 @@ void VTGen_flush(VTGen* gen, uint8_t lastFlush,
             kvpair.value.otf_double = entry->kvalue.d;
             break;
           default:
-            vt_assert(0);
+            vt_libassert(0);
         }
 
         if (OTF_WBuffer_writeKeyValuePair_short( filestream_buffer,
@@ -985,7 +985,7 @@ void VTGen_flush(VTGen* gen, uint8_t lastFlush,
       }
       default:
       {
-        vt_assert(0);
+        vt_libassert(0);
       }
     }
 
@@ -1135,25 +1135,25 @@ void VTGen_delete(VTGen* gen)
       OTF_getFilename(gen->fileprefix, gen->tid+1,
                       OTF_FILETYPE_DEF | gen->filecomp,
                       0, NULL);
-    vt_assert(tmp_namev[0]);
+    vt_libassert(tmp_namev[0]);
 
     tmp_namev[1] =
       OTF_getFilename(gen->fileprefix, gen->tid+1,
                       OTF_FILETYPE_EVENT | gen->filecomp,
                       0, NULL);
-    vt_assert(tmp_namev[1]);
+    vt_libassert(tmp_namev[1]);
 
     tmp_namev[2] =
       OTF_getFilename(gen->fileprefix, gen->tid+1,
                       OTF_FILETYPE_STATS | gen->filecomp,
                       0, NULL);
-    vt_assert(tmp_namev[2]);
+    vt_libassert(tmp_namev[2]);
 
     tmp_namev[3] =
       OTF_getFilename(gen->fileprefix, gen->tid+1,
                       OTF_FILETYPE_MARKER | gen->filecomp,
                       0, NULL);
-    vt_assert(tmp_namev[3]);
+    vt_libassert(tmp_namev[3]);
 
     tmp_namev[4] = NULL;
 
@@ -1965,7 +1965,7 @@ void VTGen_write_KEYVAL(VTGen* gen, uint32_t kid, uint8_t vtype, void* kvalue)
       VTGEN_ALIGN_LENGTH(sizeof(VTBuf_Entry_KeyValue));
 
     /* No VTGEN_ALLOC_EVENT since space must be guaranteed */
-    vt_assert( (uint64_t)((gen)->buf->pos - (gen)->buf->mem) <=
+    vt_libassert( (uint64_t)((gen)->buf->pos - (gen)->buf->mem) <=
                (uint64_t)((gen)->buf->size - length) );
 
     new_entry = ((VTBuf_Entry_KeyValue*)gen->buf->pos);
@@ -1999,7 +1999,7 @@ void VTGen_write_KEYVAL(VTGen* gen, uint32_t kid, uint8_t vtype, void* kvalue)
         new_entry->kvalue.d = *((double*)kvalue);
         break;
       default:
-        vt_assert(0);
+        vt_libassert(0);
     }
 
     VTGEN_JUMP(gen, length);
diff --git a/ompi/contrib/vt/vt/vtlib/vt_plugin_cntr.c b/ompi/contrib/vt/vt/vtlib/vt_plugin_cntr.c
index bf6a467d56..ac5b316787 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_plugin_cntr.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_plugin_cntr.c
@@ -697,13 +697,13 @@ void vt_plugin_cntr_finalize(uint32_t tnum) {
 
 static void maybe_register_new_thread(VTThrd * thrd, uint32_t tid) {
   struct vt_plugin_cntr_defines * plugin_cntr_defines;
-  vt_assert(thrd!=NULL);
+  vt_libassert(thrd!=NULL);
   /* "register" a thread */
   if (thrd->plugin_cntr_defines == NULL) {
     uint32_t i;
     thrd->plugin_cntr_defines
         = calloc(1, sizeof(struct vt_plugin_cntr_defines));
-    vt_assert(thrd->plugin_cntr_defines!=NULL);
+    vt_libassert(thrd->plugin_cntr_defines!=NULL);
     plugin_cntr_defines
         = (struct vt_plugin_cntr_defines *) thrd->plugin_cntr_defines;
     plugin_cntr_defines->counters = calloc(VT_PLUGIN_CNTR_SYNCH_TYPE_MAX,
@@ -829,7 +829,7 @@ static void add_events(struct vt_plugin current_plugin, VTThrd * thrd) {
 
 uint32_t vt_plugin_cntr_get_num_synch_metrics(VTThrd * thrd) {
   uint32_t num = 0;
-  vt_assert(thrd != NULL);
+  vt_libassert(thrd != NULL);
   if (thrd->plugin_cntr_defines == NULL)
     return 0;
   num = ((struct vt_plugin_cntr_defines *)(thrd->plugin_cntr_defines))
diff --git a/ompi/contrib/vt/vt/vtlib/vt_thrd_java.c b/ompi/contrib/vt/vt/vtlib/vt_thrd_java.c
index 90c49eb77f..53454fd2fc 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_thrd_java.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_thrd_java.c
@@ -124,7 +124,7 @@ uint32_t VTThrd_getThreadId()
   if (tid == NULL && vt_jvmti_agent->vm_is_dead)
     return 0;
   else
-    vt_assert(tid != NULL);
+    vt_libassert(tid != NULL);
 
   return *tid;
 }
@@ -133,7 +133,7 @@ void VTThrd_createMutex(VTThrdMutex** mutex)
 {
   jvmtiError error;
 
-  vt_assert(mutexInitMutex != NULL);
+  vt_libassert(mutexInitMutex != NULL);
 
   error = (*jvmti)->RawMonitorEnter(jvmti, mutexInitMutex);
   vt_java_check_error(jvmti, error, "RawMonitorEnter");
@@ -190,7 +190,7 @@ void VTThrd_unlock(VTThrdMutex** mutex)
 {
   jvmtiError error;
 
-  vt_assert(*mutex != NULL);
+  vt_libassert(*mutex != NULL);
 
   error = (*jvmti)->RawMonitorExit(jvmti, (*mutex)->m);
   vt_java_check_error(jvmti, error, "RawMonitorExit");
diff --git a/ompi/contrib/vt/vt/vtlib/vt_thrd_omp.c b/ompi/contrib/vt/vt/vtlib/vt_thrd_omp.c
index 2a8fcfa7e2..1bfd4cee42 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_thrd_omp.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_thrd_omp.c
@@ -66,7 +66,7 @@ uint8_t VTThrd_isAlive()
 
 uint32_t VTThrd_getThreadId()
 {
-  vt_assert(threadId != VT_NO_ID);
+  vt_libassert(threadId != VT_NO_ID);
   return threadId;
 }
 
@@ -109,7 +109,7 @@ void VTThrd_lock(VTThrdMutex** mutex)
 
 void VTThrd_unlock(VTThrdMutex** mutex)
 {
-  vt_assert(*mutex != NULL);
+  vt_libassert(*mutex != NULL);
 
   omp_unset_lock(&((*mutex)->m));
 }
diff --git a/ompi/contrib/vt/vt/vtlib/vt_thrd_pthread.c b/ompi/contrib/vt/vt/vtlib/vt_thrd_pthread.c
index fb75e904b3..4877326566 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_thrd_pthread.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_thrd_pthread.c
@@ -60,7 +60,7 @@ static uint8_t  masterThreadTerminated = 0;
 
 static uint32_t idle_tid_list_size(uint32_t ptid)
 {
-  vt_assert(ptid < VTThrdMaxNum);
+  vt_libassert(ptid < VTThrdMaxNum);
   return idleThreadIds[ptid].size;
 }
 
@@ -68,7 +68,7 @@ static void idle_tid_list_push_back(uint32_t ptid, uint32_t tid)
 {
   IdleThreadIdListEntryT* idle_tid;
 
-  vt_assert(ptid < VTThrdMaxNum);
+  vt_libassert(ptid < VTThrdMaxNum);
 
   /* create new list entry */
   idle_tid = (IdleThreadIdListEntryT*)calloc(1,
@@ -98,8 +98,8 @@ static uint32_t idle_tid_list_pop_front(uint32_t ptid)
   uint32_t tid;
   IdleThreadIdListEntryT* tmp;
 
-  vt_assert(ptid < VTThrdMaxNum);
-  vt_assert(idleThreadIds[ptid].size > 0);
+  vt_libassert(ptid < VTThrdMaxNum);
+  vt_libassert(idleThreadIds[ptid].size > 0);
 
   /* get thread-ID from the first list entry */
   tid = idleThreadIds[ptid].first->tid;
@@ -289,7 +289,7 @@ uint32_t VTThrd_getThreadId()
   if (tid == NULL && masterThreadTerminated)
     return 0;
   else
-    vt_assert(tid != NULL);
+    vt_libassert(tid != NULL);
 
   return *tid;
 }
@@ -331,7 +331,7 @@ void VTThrd_lock(VTThrdMutex** mutex)
 
 void VTThrd_unlock(VTThrdMutex** mutex)
 {
-  vt_assert(*mutex != NULL);
+  vt_libassert(*mutex != NULL);
 
   pthread_mutex_unlock(&((*mutex)->m));
 }
diff --git a/ompi/contrib/vt/vt/vtlib/vt_trc.c b/ompi/contrib/vt/vt/vtlib/vt_trc.c
index bd659f02ed..196c6d76bd 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_trc.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_trc.c
@@ -2196,7 +2196,7 @@ uint32_t vt_def_region(uint32_t tid, const char* rname, uint32_t fid,
 #if !defined(VT_DISABLE_RFG)
   /* get region's filter/group information */
   rinf = RFG_Regions_add(VTTHRD_RFGREGIONS(VTThrdv[0]), rname, rid);
-  vt_assert(rinf != NULL);
+  vt_libassert(rinf != NULL);
 
   /* get region's group name, if specified by VT_GROUPS_SPEC */
   if ( rinf->groupName != NULL )
@@ -2558,7 +2558,7 @@ uint8_t vt_enter(uint32_t tid, uint64_t* time, uint32_t rid)
 #if (defined(VT_MT) || defined(VT_HYB) || defined(VT_JAVA))
     VTTHRD_UNLOCK_IDS();
 #endif /* VT_MT || VT_HYB || V_JAVA */
-    vt_assert(rinf_master != NULL);
+    vt_libassert(rinf_master != NULL);
 
     rinf = RFG_Regions_add(VTTHRD_RFGREGIONS(VTThrdv[tid]),
                            rinf_master->regionName, rid);
@@ -2571,9 +2571,9 @@ uint8_t vt_enter(uint32_t tid, uint64_t* time, uint32_t rid)
 
     if (!RFG_Regions_stackPush(VTTHRD_RFGREGIONS(VTThrdv[tid]),
                                rid, do_trace, &rinf))
-      vt_assert(0);
+      vt_libassert(0);
 #   else /* VT_MT || VT_HYB || VT_JAVA || VT_GPU */
-    vt_assert(0);
+    vt_libassert(0);
 #   endif /* VT_MT || VT_HYB || VT_JAVA || VT_GPU */
   }
 
@@ -2633,7 +2633,7 @@ void vt_exit(uint32_t tid, uint64_t* time)
   if (!RFG_Regions_stackPop(VTTHRD_RFGREGIONS(VTThrdv[tid]),
                             &rinf, &climitbyenter))
   {
-    vt_assert(0);
+    vt_libassert(0);
   }
 
   if (climitbyenter == 0)
diff --git a/ompi/contrib/vt/vt/vtlib/vt_unimci.c b/ompi/contrib/vt/vt/vtlib/vt_unimci.c
index 3344bf4cf2..6e336a48e4 100644
--- a/ompi/contrib/vt/vt/vtlib/vt_unimci.c
+++ b/ompi/contrib/vt/vt/vtlib/vt_unimci.c
@@ -66,12 +66,12 @@ void vt_unimci_check_msg(uint8_t record, uint64_t* time)
 
     /* get first message */
     UNIMCI_pop_msg( &msg );
-    vt_assert( msg );
+    vt_libassert( msg );
 
     /* record marker, if allowed */
     if( record )
     {
-      vt_assert( time );
+      vt_libassert( time );
 
       /* check for message type */
       switch( msg->msgType )