diff --git a/base/Makefile b/base/Makefile
index 639035b9..f38f3a1c 100644
--- a/base/Makefile
+++ b/base/Makefile
@@ -4,12 +4,14 @@ HERE=.
 LIBDIR=../lib
 LIBNAME=$(BASELIBNAME)
 LIBMOD=psb_base_mod$(.mod)
-lib: $(LIBDIR)/$(LIBNAME) $(LIBDIR)/$(LIBMOD) mods sr cm in pb tl
+lib: $(LIBDIR)/$(LIBNAME) $(LIBDIR)/$(LIBMOD)
+
+$(HERE)/$(LIBNAME): mods sr cm in pb tl
 
 $(LIBDIR)/$(LIBNAME): $(HERE)/$(LIBNAME)
 	/bin/cp -p $(CPUPDFLAG) $(HERE)/$(LIBNAME) $(LIBDIR)
 
-$(LIBDIR)/$(LIBMOD):
+$(LIBDIR)/$(LIBMOD): $(LIBMOD)
 	/bin/cp -p $(CPUPDFLAG) $(LIBMOD) *$(.mod) $(LIBDIR)
 
 sr cm in pb tl: mods
diff --git a/base/serial/f77/Makefile b/base/serial/f77/Makefile
index 68312db2..354d87a2 100644
--- a/base/serial/f77/Makefile
+++ b/base/serial/f77/Makefile
@@ -17,6 +17,7 @@ LIBDIR=../..
 MODDIR=../../modules
 FINCLUDES=$(FMFLAG)$(LIBDIR) $(FMFLAG)$(MODDIR) $(FMFLAG)$(SPARKERDIR)  $(FMFLAG). 
 #LIBNAME=libsparker.a	
+LIBNAME=$(BASELIBNAME)
 LIBFILE=$(LIBDIR)/$(LIBNAME)
 
 #
diff --git a/prec/Makefile b/prec/Makefile
index 72a7c3c3..92142f70 100644
--- a/prec/Makefile
+++ b/prec/Makefile
@@ -29,7 +29,7 @@ OBJS=$(F90OBJS) $(COBJS) $(MPFOBJS) $(MODOBJS)
 
 lib:  $(LIBDIR)/$(LIBNAME) $(LIBDIR)/$(LIBMOD)
 
-$(HERE)/$(LIBNAME):
+$(HERE)/$(LIBNAME): $(OBJS)
 	$(AR) $(HERE)/$(LIBNAME) $(OBJS)
 	$(RANLIB) $(HERE)/$(LIBNAME)
 
diff --git a/util/Makefile b/util/Makefile
index de4f9a15..a5440b30 100644
--- a/util/Makefile
+++ b/util/Makefile
@@ -21,14 +21,13 @@ lib:  $(LIBDIR)/$(LIBNAME) $(LIBDIR)/$(LIBMOD)
 $(LIBDIR)/$(LIBNAME): $(HERE)/$(LIBNAME)
 	/bin/cp -p $(CPUPDFLAG) $(HERE)/$(LIBNAME) $(LIBDIR)
 
-$(LIBDIR)/$(LIBMOD):
+$(LIBDIR)/$(LIBMOD): $(LIBMOD)
 	/bin/cp -p $(CPUPDFLAG) $(LIBMOD) $(LOCAL_MODS) $(LIBDIR)
 
-$(HERE)/$(LIBNAME):
+$(HERE)/$(LIBNAME): $(OBJS)
 	$(AR) $(HERE)/$(LIBNAME) $(OBJS)
 	$(RANLIB) $(HERE)/$(LIBNAME)
 
-
 psb_util_mod.o: $(BASEOBJS)
 
 veryclean: clean