Docs: add src-dir to extract_texi_filenames.py

This fixes split HTML Contributors' Guide build outside source tree.

diff --git a/stepmake/stepmake/texinfo-vars.make b/stepmake/stepmake/texinfo-vars.make
index 4638ab223528589376c7a724ad9fbd7f9d887a0a..3c8c8bbdd0301325c7634375a1f7725c2adc5039 100644 (file)
--- a/stepmake/stepmake/texinfo-vars.make
+++ b/stepmake/stepmake/texinfo-vars.make
@@ -20,7 +20,7 @@ MAKEINFO = LANG= $(MAKEINFO_PROGRAM) $(MAKEINFO_FLAGS)
 XREF_MAPS_DIR = $(top-build-dir)/$(outdir)/xref-maps
 XREF_MAPS_FILES += $(TEXI_FILES:%.texi=$(XREF_MAPS_DIR)/%.xref-map) \
  $(TELY_FILES:%.tely=$(XREF_MAPS_DIR)/%.xref-map)
-XREF_MAP_FLAGS += -I $(outdir)
+XREF_MAP_FLAGS += -I $(outdir) -I $(src-dir)
 
 ###########
 ifneq ($(ISOLANG),)