texi2html option `--lang' was obsoleted by `--document-language'.
###########
ifneq ($(ISOLANG),)
###########
ifneq ($(ISOLANG),)
-TEXI2HTML_LANG = --lang=$(ISOLANG)
+TEXI2HTML_LANG = --document-language=$(ISOLANG)
endif
$(XREF_MAPS_DIR)/web.$(ISOLANG).xref-map:\
endif
$(XREF_MAPS_DIR)/web.$(ISOLANG).xref-map:\
###########
ifneq ($(ISOLANG),)
###########
ifneq ($(ISOLANG),)
-TEXI2HTML_LANG = --lang=$(ISOLANG)
+TEXI2HTML_LANG = --document-language=$(ISOLANG)
endif
TEXI2HTML_INIT = --init-file=$(top-src-dir)/Documentation/lilypond-texi2html.init
endif
TEXI2HTML_INIT = --init-file=$(top-src-dir)/Documentation/lilypond-texi2html.init