WXINTL_NO_GETTEXT_MACRO defined in compiler options...

... so even if you neglect to include Audacity.h, it applies

src/Audacity.h

@@ -227,7 +227,7 @@ extern const wxString& GetCustomSubstitution(const wxString& str1 );
 #define _TS( s ) GetCustomSubstitution( s )
 
 
-#define WXINTL_NO_GETTEXT_MACRO
+//#define WXINTL_NO_GETTEXT_MACRO
 
 #ifdef wxPLURAL
 #undef wxPLURAL

src/Makefile.am

@@ -52,6 +52,7 @@ audacity_CPPFLAGS = \
 	-std=c++11 \
 	-Wno-deprecated-declarations \
 	-D__STDC_CONSTANT_MACROS \
+	-DWXINTL_NO_GETTEXT_MACRO \
 	-DLIBDIR=\"$(libdir)\" \
 	$(EXPAT_CFLAGS) \
 	$(FILEDIALOG_CFLAGS) \

src/widgets/numformatter.cpp

@@ -28,6 +28,7 @@
 #endif
 
 
+#include "../Audacity.h"
 #include "numformatter.h"
 #include <wx/intl.h>