Fix Windows build when not using precompiled headers

Should we turn of precompiled headers in our Release builds???

.github/workflows/cmake_build.yml

@@ -146,14 +146,15 @@ jobs:
         # on Github, we only build the Release version of
         # wxWidgets and the FindwxWidgets CMake module
         # defaults to looking for both.  If either of them
-        # isn't found, then it doesn't provides the required
+        # isn't found, then it doesn't provided the required
         # library information.  This is only a concern for
         # Windows.
         cmake -S . \
               -B build \
               -G "${{matrix.config.generator}}" \
               -A ${{matrix.config.platform}} \
-              -D wxWidgets_USE_REL_AND_DBG=NO
+              -D wxWidgets_USE_REL_AND_DBG=no \
+              -D audacity_use_pch=no
 
         # Build Audacity
         cmake --build build --config Release --verbose

src/Internat.h

@@ -58,6 +58,9 @@ extern AUDACITY_DLL_API const wxString& GetCustomSubstitution(const wxString& st
 
    #ifdef __WXMSW__
 
+   // Eventually pulls in <windows.h> which indirectly defines DebugBreak(). Can't
+   // include <windows.h> directly since it then causes "MemoryX.h" to spew errors.
+   #include <wx/app.h>
    #define _(s) ((wxTranslations::Get() || (DebugBreak(), true)), \
                 GetCustomTranslation((s)))
 

src/MemoryX.h

@@ -8,7 +8,6 @@
 #define safenew new
 #endif
 
-
 #include <functional>
 
 #if !(_MSC_VER >= 1800 || __cplusplus >= 201402L)
@@ -200,9 +199,12 @@ public:
 #ifdef _DEBUG
 #ifdef _MSC_VER
 #undef new
-#endif
-#endif
 
+// wx/any.h also uses Placement-NEW so include it before redefining "new" at comment:
+//    "Restore definition of debug new"
+#include <wx/any.h>
+#endif
+#endif
 
 template<typename X>
 class Optional {