Index: doc/papers/concurrency/Makefile
===================================================================
--- doc/papers/concurrency/Makefile	(revision 7f0001ca4ecbf6bf7f7be2b5c60a551cd91dbe10)
+++ doc/papers/concurrency/Makefile	(revision d28a03ecbd43a9006978a2f77f2752fc4daadd7d)
@@ -81,11 +81,11 @@
 	ln -fs ../AMA/AMA-stix/ama/WileyNJD-AMA.bst .
 
-%.tex : %.fig
+%.tex : %.fig ${Build}
 	fig2dev -L eepic $< > ${Build}/$@
 
-%.ps : %.fig
+%.ps : %.fig ${Build}
 	fig2dev -L ps $< > ${Build}/$@
 
-%.pstex : %.fig
+%.pstex : %.fig ${Build}
 	fig2dev -L pstex $< > ${Build}/$@
 	fig2dev -L pstex_t -p ${Build}/$@ $< > ${Build}/$@_t