r8143: fix unnecessary building

diff --git a/doc/Makefile b/doc/Makefile
index e061af2623d9e4d5e3bd9bcaa2e353ee3a16f98b..53148807170ca27b354b98698684f38e543f0227 100644 (file)
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -72,7 +72,8 @@ ${FOFILE}: $(DOCFILES) Makefile
 .PHONY: pdf
 pdf: ${PDFFILE}
 
-${PDFFILE}: ${FOFILE}
+${PDFFILE}: ${DOCFILES} Makefile
+       @$(MAKE) fo
        @fop $(FOFILE) -pdf $(PDFFILE) > /dev/null
 
 .PHONY: dvi
@@ -81,7 +82,8 @@ dvi: ${DVIFILE}
 .PHONY: ps
 ps: ${PSFILE}
 
-${PSFILE}: ${FOFILE}
+${PSFILE}: ${DOCFILES} Makefile
+       @$(MAKE) fo
        @fop $(FOFILE) -ps $(PSFILE) > /dev/null