-I $(XREF_MAPS_DIR)
TEXI2HTML = LANG= $(TEXI2HTML_PROGRAM)
-TEXI2PDF_FLAGS += -q --batch $(DOCUMENTATION_INCLUDES)
+TEXI2PDF_FLAGS += --batch $(DOCUMENTATION_INCLUDES)
+
+ifdef QUIET_BUILD
+TEXI2PDF_FLAGS += -q
+endif
+
+DOCUMENTATION_LOCALE_TARGET = $(outdir)/doc-po