add ranlib for mac

unix/make/Make.Darwin-PowerMacintosh

diff --git a/unix/make/Make.Darwin-PowerMacintosh b/unix/make/Make.Darwin-PowerMacintosh
index 14b8d4e..21ede6f 100644
--- a/unix/make/Make.Darwin-PowerMacintosh
+++ b/unix/make/Make.Darwin-PowerMacintosh
@@ -4,3 +4,4 @@
 AR=ar
 ARFLAGS=rvc
 NAN=nan64.$O
+RANLIB=ranlib

unix/make/Makefile.LIB

diff --git a/unix/make/Makefile.LIB b/unix/make/Makefile.LIB
index 9ebf560..bd655ce 100644
--- a/unix/make/Makefile.LIB
+++ b/unix/make/Makefile.LIB
@@ -1,4 +1,5 @@
 $(LIB): $(OFILES)
 	$(AR) $(ARFLAGS) $(LIB) $(OFILES)
+	$(RANLIB) $(LIB)
 
 NUKEFILES+=$(LIB)

unix/make/Makefile.TOP

diff --git a/unix/make/Makefile.TOP b/unix/make/Makefile.TOP
index c5a613d..d2a73de 100644
--- a/unix/make/Makefile.TOP
+++ b/unix/make/Makefile.TOP
@@ -10,6 +10,8 @@
 # the gnu rules will mess up bsd but not vice versa,
 # hence the gnu rules come first.
 
+RANLIB=true
+
 include Make.$(SYSNAME)-$(OBJTYPE)
 
 PREFIX=/usr/local