qt: Translate all files, even if wallet disabled

This passes all QT cpp files to the lupdate executable which extracts
translations, no matter what conditional functionality is enabled.

src/Makefile.qt.include

@@ -289,7 +289,7 @@ RES_ICONS = \
   qt/res/icons/warning.png \
   qt/res/icons/verify.png
 
-BITCOIN_QT_CPP = \
+BITCOIN_QT_BASE_CPP = \
   qt/bantablemodel.cpp \
   qt/bitcoinaddressvalidator.cpp \
   qt/bitcoinamountfield.cpp \
@@ -313,12 +313,9 @@ BITCOIN_QT_CPP = \
   qt/trafficgraphwidget.cpp \
   qt/utilitydialog.cpp
 
-if TARGET_WINDOWS
-BITCOIN_QT_CPP += qt/winshutdownmonitor.cpp
-endif
+BITCOIN_QT_WINDOWS_CPP = qt/winshutdownmonitor.cpp
 
-if ENABLE_WALLET
-BITCOIN_QT_CPP += \
+BITCOIN_QT_WALLET_CPP = \
   qt/addressbookpage.cpp \
   qt/addresstablemodel.cpp \
   qt/askpassphrasedialog.cpp \
@@ -345,6 +342,13 @@ BITCOIN_QT_CPP += \
   qt/walletmodel.cpp \
   qt/walletmodeltransaction.cpp \
   qt/walletview.cpp
+
+BITCOIN_QT_CPP = $(BITCOIN_QT_BASE_CPP)
+if TARGET_WINDOWS
+BITCOIN_QT_CPP += $(BITCOIN_QT_WINDOWS_CPP)
+endif
+if ENABLE_WALLET
+BITCOIN_QT_CPP += $(BITCOIN_QT_WALLET_CPP)
 endif
 
 RES_IMAGES = 
@@ -413,7 +417,7 @@ $(srcdir)/qt/bitcoinstrings.cpp: $(libbitcoin_server_a_SOURCES) $(libbitcoin_wal
 	@test -n $(XGETTEXT) || echo "xgettext is required for updating translations"
 	$(AM_V_GEN) cd $(srcdir); XGETTEXT=$(XGETTEXT) PACKAGE_NAME="$(PACKAGE_NAME)" COPYRIGHT_HOLDERS="$(COPYRIGHT_HOLDERS)" COPYRIGHT_HOLDERS_SUBSTITUTION="$(COPYRIGHT_HOLDERS_SUBSTITUTION)" $(PYTHON) ../share/qt/extract_strings_qt.py $^
 
-translate: $(srcdir)/qt/bitcoinstrings.cpp $(QT_FORMS_UI) $(QT_FORMS_UI) $(BITCOIN_QT_CPP) $(BITCOIN_QT_H) $(BITCOIN_MM)
+translate: $(srcdir)/qt/bitcoinstrings.cpp $(QT_FORMS_UI) $(QT_FORMS_UI) $(BITCOIN_QT_BASE_CPP) $(BITCOIN_QT_WINDOWS_CPP) $(BITCOIN_QT_WALLET_CPP) $(BITCOIN_QT_H) $(BITCOIN_MM)
 	@test -n $(LUPDATE) || echo "lupdate is required for updating translations"
 	$(AM_V_GEN) QT_SELECT=$(QT_SELECT) $(LUPDATE) $^ -locations relative -no-obsolete -ts $(srcdir)/qt/locale/bitcoin_en.ts