TEXI2HTML_LANG=--lang=$(ISOLANG)
TEXI2HTML_FLAGS += $(TEXI2HTML_LANG) $(DOCUMENTATION_INCLUDES) \
-I $(XREF_MAPS_DIR)
-TEXI2HTML = LANG= $(TEXI2HTML_PROGRAM)
+TEXI2HTML = PERL_UNICODE=SD LANG= $(TEXI2HTML_PROGRAM)
TEXI2PDF_FLAGS += --batch $(DOCUMENTATION_INCLUDES)