diff --git a/include/wx/checkeddelete.h b/include/wx/checkeddelete.h
index a9e14c3a2e..a03d7454d6 100644
--- a/include/wx/checkeddelete.h
+++ b/include/wx/checkeddelete.h
@@ -11,6 +11,8 @@
 #ifndef _WX_CHECKEDDELETE_H_
 #define _WX_CHECKEDDELETE_H_
 
+#include "wx/cpp.h"
+
 // TODO: provide wxCheckedDelete[Array]() template functions too
 
 // ----------------------------------------------------------------------------
@@ -26,28 +28,17 @@
    still force a semicolon after the macro
 */
 
-#ifdef __WATCOMC__
-    #define wxFOR_ONCE(name)              for(int name=0; name<1; name++)
-    #define wxPRE_NO_WARNING_SCOPE(name)  wxFOR_ONCE(wxMAKE_UNIQUE_NAME(name))
-    #define wxPOST_NO_WARNING_SCOPE(name)
-#else
-    #define wxPRE_NO_WARNING_SCOPE(name)  do
-    #define wxPOST_NO_WARNING_SCOPE(name) while ( wxFalse )
-#endif
-
 #define wxCHECKED_DELETE(ptr)                                                 \
-    wxPRE_NO_WARNING_SCOPE(scope_var1)                                        \
-    {                                                                         \
+    wxSTATEMENT_MACRO_BEGIN                                                   \
         typedef char complete[sizeof(*ptr)];                                  \
         delete ptr;                                                           \
-    } wxPOST_NO_WARNING_SCOPE(scope_var1)
+    wxSTATEMENT_MACRO_END
 
 #define wxCHECKED_DELETE_ARRAY(ptr)                                           \
-    wxPRE_NO_WARNING_SCOPE(scope_var2)                                        \
-    {                                                                         \
+    wxSTATEMENT_MACRO_BEGIN                                                   \
         typedef char complete[sizeof(*ptr)];                                  \
         delete [] ptr;                                                        \
-    } wxPOST_NO_WARNING_SCOPE(scope_var2)
+    wxSTATEMENT_MACRO_END
 
 
 #endif // _WX_CHECKEDDELETE_H_
diff --git a/include/wx/cpp.h b/include/wx/cpp.h
index 657b0673eb..9fed106a76 100644
--- a/include/wx/cpp.h
+++ b/include/wx/cpp.h
@@ -79,6 +79,28 @@
  */
 #define wxEMPTY_PARAMETER_VALUE /* Fake macro parameter value */
 
+/*
+    Helpers for defining macros that expand into a single statement.
+
+    The standatd solution is to use "do { ... } while (0)" statement but MSVC
+    generates a C4127 "condition expression is constant" warning for it so we
+    use something which is just complicated enough to not be recognized as a
+    constant but still simple enough to be optimized away.
+
+    Another solution would be to use __pragma() to temporarily disable C4127.
+
+    Notice that wxASSERT_ARG_TYPE in wx/strvargarg.h relies on these macros
+    creating some kind of a loop because it uses "break".
+ */
+#ifdef __WATCOMC__
+    #define wxFOR_ONCE(name) for(int name=0; name<1; name++)
+    #define wxSTATEMENT_MACRO_BEGIN wxFOR_ONCE(wxMAKE_UNIQUE_NAME(wxmacro)) {
+    #define wxSTATEMENT_MACRO_END }
+#else
+    #define wxSTATEMENT_MACRO_BEGIN  do {
+    #define wxSTATEMENT_MACRO_END } while ( (void)0, 0 )
+#endif
+
 /*
     Define __WXFUNCTION__ which is like standard __FUNCTION__ but defined as
     NULL for the compilers which don't support the latter.
diff --git a/include/wx/strvararg.h b/include/wx/strvararg.h
index 0bde80b3a6..8f2d16551e 100644
--- a/include/wx/strvararg.h
+++ b/include/wx/strvararg.h
@@ -309,14 +309,13 @@ struct wxFormatStringArgumentFinder<wxWCharBuffer>
     // the correct type (one of wxFormatString::Arg_XXX or-combination in
     // 'expected_mask').
     #define wxASSERT_ARG_TYPE(fmt, index, expected_mask)                    \
-        do                                                                  \
-        {                                                                   \
+        wxSTATEMENT_MACRO_BEGIN                                             \
             if ( !fmt )                                                     \
                 break;                                                      \
             const int argtype = fmt->GetArgumentType(index);                \
             wxASSERT_MSG( (argtype & (expected_mask)) == argtype,           \
                           "format specifier doesn't match argument type" ); \
-        } while ( wxFalse )
+        wxSTATEMENT_MACRO_END
 #else
     // Just define it to suppress "unused parameter" warnings for the
     // parameters which we don't use otherwise