Fix some dependencies in bindists

We can't depend on sources in a bindist, because we don't have the sources.

docs/users_guide/ghc.mk

@@ -29,5 +29,8 @@ src_ug_book  = $(dir $(realpath $(dir $(build_ug_book))/ug-book.xml.in))ug-book.
 ifneq "$(build_ug_book)" "$(src_ug_book)"
 $(src_ug_book) : $(build_ug_book)
 	"$(CP)" $< $@
+ifneq "$(BINDIST)" "YES"
 docs/users_guide/users_guide.pdf docs/users_guide/users_guide.ps: $(src_ug_book)
 endif
+endif
+

rules/docbook.mk

@@ -29,6 +29,7 @@ $(call all-target,$1,html_$1)
 
 html_$1 : $1/$2/index.html
 
+ifneq "$$(BINDIST)" "YES"
 $1/$2/index.html: $$($1_DOCBOOK_SOURCES)
 	"$$(RM)" $$(RM_OPTS) -r $$(dir $$@)
 	"$$(XSLTPROC)" --stringparam base.dir $$(dir $$@) \
@@ -39,6 +40,7 @@ $1/$2/index.html: $$($1_DOCBOOK_SOURCES)
 	               $$(XSLTPROC_HTML_STYLESHEET) \
 	               $1/$2.xml
 	cp mk/fptools.css $$(dir $$@)
+endif
 
 INSTALL_HTML_DOC_DIRS += $1/$2
 else
@@ -53,8 +55,10 @@ $(call all-target,$1,ps_$1)
 
 ps_$1 : $1/$2.ps
 
+ifneq "$$(BINDIST)" "YES"
 $1/$2.ps: $$($1_DOCBOOK_SOURCES)
 	"$$(DBLATEX)" $$(DBLATEX_OPTS) $1/$2.xml --ps -o $$@
+endif
 
 INSTALL_DOCS += $1/$2.ps
 else
@@ -69,8 +73,10 @@ $(call all-target,$1,pdf_$1)
 .PHONY: pdf_$1
 pdf_$1 : $1/$2.pdf
 
+ifneq "$$(BINDIST)" "YES"
 $1/$2.pdf: $$($1_DOCBOOK_SOURCES)
 	"$$(DBLATEX)" $$(DBLATEX_OPTS) $1/$2.xml --pdf -o $$@
+endif
 
 INSTALL_DOCS += $1/$2.pdf
 else