--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -100,8 +100,9 @@ uninstall-local:
 
 check:
 manual.txt: manual.html db-cleanup.xsl
-	-xsltproc --nonet -o manual-txt.html $(srcdir)/db-cleanup.xsl manual.html || cp manual.html manual-txt.html
-	-lynx -dump -nolist -with_backspaces manual-txt.html > $@ || \
+	xsltproc --nonet -o manual-txt.html $(srcdir)/db-cleanup.xsl manual.html || cp manual.html manual-txt.html
+	links.main -dump $< > $@ || links -dump $< > $@ || \
+	lynx -dump -nolist -with_backspaces manual-txt.html > $@ || \
 	w3m -dump manual-txt.html > $@ || \
 	elinks -dump -no-numbering -no-references manual-txt.html > $@
 
@@ -115,10 +116,10 @@ stamp-doc-rc: $(top_srcdir)/init.h maked
 	touch stamp-doc-rc
 
 manual.html: $(srcdir)/html.xsl stamp-doc-xml
-	-xsltproc --nonet -o $@ $(srcdir)/html.xsl manual.xml
+	xsltproc --nonet -o $@ $(srcdir)/html.xsl manual.xml
 
 stamp-doc-chunked: $(srcdir)/chunk.xsl stamp-doc-xml
-	-xsltproc --nonet $(srcdir)/chunk.xsl manual.xml
+	xsltproc --nonet $(srcdir)/chunk.xsl manual.xml
 	touch stamp-doc-chunked
 
 $(HTML_DOCFILES): stamp-doc-chunked