diff --git a/setup.h_vms b/setup.h_vms
index 4aa0e67498..3216cd9b7f 100644
--- a/setup.h_vms
+++ b/setup.h_vms
@@ -140,6 +140,11 @@
  */
 #define HAVE_BOOL
 
+/*
+ * Define if your compiler supports the explicit keyword
+ */
+#define HAVE_EXPLICIT 1
+
 /*
  * Use regex support
  */
diff --git a/src/common/descrip.mms b/src/common/descrip.mms
index a4a2fdc2c2..ff2d324571 100644
--- a/src/common/descrip.mms
+++ b/src/common/descrip.mms
@@ -119,6 +119,7 @@ OBJECTS1=fs_inet.obj,\
 		menucmn.obj,\
 		mimecmn.obj,\
 		module.obj,\
+		msgout.obj,\
 		mstream.obj,\
 		nbkbase.obj,\
 		object.obj,\
@@ -240,6 +241,7 @@ SOURCES = \
 		menucmn.cpp,\
 		mimecmn.cpp,\
 		module.cpp,\
+		msgout.cpp,\
 		mstream.cpp,\
 		nbkbase.cpp,\
 		object.cpp,\
@@ -399,6 +401,7 @@ memory.obj : memory.cpp
 menucmn.obj : menucmn.cpp
 mimecmn.obj : mimecmn.cpp
 module.obj : module.cpp
+msgout.obj : msgout.cpp
 mstream.obj : mstream.cpp
 nbkbase.obj : nbkbase.cpp
 object.obj : object.cpp
diff --git a/src/unix/utilsunx.cpp b/src/unix/utilsunx.cpp
index c7f527e9b2..97f764b829 100644
--- a/src/unix/utilsunx.cpp
+++ b/src/unix/utilsunx.cpp
@@ -582,6 +582,9 @@ private:
 // ----------------------------------------------------------------------------
 // wxExecute: the real worker function
 // ----------------------------------------------------------------------------
+#ifdef __VMS
+#pragma message disable codeunreachable
+#endif
 
 long wxExecute(wxChar **argv,
                int flags,
@@ -847,6 +850,9 @@ long wxExecute(wxChar **argv,
 
     return ERROR_RETURN_CODE;
 }
+#ifdef __VMS
+#pragma message enable codeunreachable
+#endif
 
 #undef ERROR_RETURN_CODE
 #undef ARGS_CLEANUP