Fix the groff build to put the images in the right place.

util/LLgen/Makefile

@@ -42,11 +42,11 @@ $(OBJDIR)/%.o: %.c
 
 $(OBJDIR)/%.pdf: doc/%.n doc/LLgen.refs
 	@mkdir -p $(dir $@)
-	refer $< | groff -G -e -g -p -ms -Tpdf $< > $@
+	refer -p doc/LLgen.refs $< | groff -G -e -g -p -ms -Tpdf $< > $@
 
 $(OBJDIR)/%/index.html: doc/%.n doc/LLgen.refs
 	@mkdir -p $(dir $@)
-	refer $< | (cd $(dir $@) && groff -I$(PWD) -G -e -g -p -ms -Thtml) > $@
+	(cd $(dir $@) && refer -p $(PWD)/doc/LLgen.refs | groff -G -e -g -p -ms -Thtml) < $< > $@
 
 doc:: $(PDFS) $(HTMLS)
 

util/LLgen/doc/LLgen.n

@@ -10,7 +10,6 @@
 \}\
 \}
 .R1
-database doc/LLgen.refs
 accumulate
 .R2
 .ND

util/LLgen/doc/LLgen_NCER.n

@@ -1,4 +1,3 @@
-.RP
 .TL