diff -ruN ParMGridGen-1.0_orig/MGridGen/IMlib/IMlib.h ParMGridGen-1.0/MGridGen/IMlib/IMlib.h
--- ParMGridGen-1.0_orig/MGridGen/IMlib/IMlib.h	2001-11-08 18:41:25.000000000 -0500
+++ ParMGridGen-1.0/MGridGen/IMlib/IMlib.h	2011-12-24 13:46:41.000000000 -0500
@@ -43,7 +43,7 @@
 #ifdef DMALLOC
 #include <dmalloc.h>
 #else
-#include <malloc.h>
+#include <sys/malloc.h>
 #endif
 
 /*************************************************************************
diff -ruN ParMGridGen-1.0_orig/MGridGen/IMlib/Makefile ParMGridGen-1.0/MGridGen/IMlib/Makefile
--- ParMGridGen-1.0_orig/MGridGen/IMlib/Makefile	2001-12-04 17:46:56.000000000 -0500
+++ ParMGridGen-1.0/MGridGen/IMlib/Makefile	2011-12-24 13:24:17.000000000 -0500
@@ -33,7 +33,7 @@
 .c.o:
 	$(CC) $(CFLAGS) -c $*.c
 
-./libIMlib.a: $(OBJS)
+libIMlib.$(LIBEXT): $(OBJS)
 	$(AR) $@ $(OBJS)
 	$(RANLIB) $@
 
@@ -41,4 +41,4 @@
 	rm -f *.o
 
 realclean:
-	rm -f *.o ; rm -f ./libIMlib.a
+	rm -f *.o ; rm -f ./libIMlib.$(LIBEXT)
diff -ruN ParMGridGen-1.0_orig/MGridGen/Lib/Makefile ParMGridGen-1.0/MGridGen/Lib/Makefile
--- ParMGridGen-1.0_orig/MGridGen/Lib/Makefile	2001-12-04 18:01:00.000000000 -0500
+++ ParMGridGen-1.0/MGridGen/Lib/Makefile	2011-12-24 13:24:17.000000000 -0500
@@ -22,7 +22,7 @@
 INCLUDES = -I./ -I$(IMLIBDIR) $(INCDIR)
 CFLAGS = $(COPTIONS) $(OPTFLAGS) $(DEBUGFLAGS) $(INCLUDES)
 
-OBJS = coarsen.o kwayfm.o match.o merge.o mgridgen.o refine.o setup.o 
+OBJS = aratio.o coarsen.o kwayfm.o match.o merge.o mgridgen.o refine.o setup.o 
 IOBJS = blas.o dfkeysort.o dkeysort.o file.o ifkeysort.o ifloatsort.o \
        iintsort.o ikeysort.o memory.o  sort.o util.o
 IMOBJS = $(addprefix ../IMlib/, $(IOBJS)) 
@@ -31,7 +31,7 @@
 .c.o:
 	$(CC) $(CFLAGS) -c $*.c
 
-../../libmgrid.a: $(OBJS) $(IMOBJS)
+libMGridGen.$(LIBEXT): $(OBJS) $(IMOBJS)
 	$(AR) $@  $(OBJS) $(IMOBJS)
 	$(RANLIB) $@
 
@@ -39,4 +39,4 @@
 	rm -f *.o
 
 realclean:
-	rm -f *.o ; rm -f ../../libmgrid.a
+	rm -f *.o ; rm -f ./libMGridGen.$(LIBEXT)
diff -ruN ParMGridGen-1.0_orig/MGridGen/Lib/mgridgen.h ParMGridGen-1.0/MGridGen/Lib/mgridgen.h
--- ParMGridGen-1.0_orig/MGridGen/Lib/mgridgen.h	2001-11-08 18:41:25.000000000 -0500
+++ ParMGridGen-1.0/MGridGen/Lib/mgridgen.h	2011-12-24 13:48:18.000000000 -0500
@@ -26,7 +26,7 @@
 #ifdef DMALLOC
 #include <dmalloc.h>
 #else
-#include <malloc.h>
+#include <sys/malloc.h>
 #endif
 
 #include "defs.h"
diff -ruN ParMGridGen-1.0_orig/MGridGen/Programs/Makefile ParMGridGen-1.0/MGridGen/Programs/Makefile
--- ParMGridGen-1.0_orig/MGridGen/Programs/Makefile	2001-12-04 18:02:26.000000000 -0500
+++ ParMGridGen-1.0/MGridGen/Programs/Makefile	2011-12-24 13:24:17.000000000 -0500
@@ -1,6 +1,6 @@
 include ../../Makefile.in
 
-MGRIDLIB  = ../../libmgrid.a
+MGRIDLIB  = ../Lib/libMGridGen.$(LIBEXT)
 
 ifeq ($(ddmalloc),yes)
   DEBUGFLAGS := $(DEBUGFLAGS) -DDMALLOC -DDEBUG
diff -ruN ParMGridGen-1.0_orig/Makefile.in ParMGridGen-1.0/Makefile.in
--- ParMGridGen-1.0_orig/Makefile.in	2011-12-24 13:54:44.000000000 -0500
+++ ParMGridGen-1.0/Makefile.in	2011-12-24 13:49:26.000000000 -0500
@@ -1,6 +1,6 @@
 #--------------------------------------------------------------------------
 # Which make to use 
-make = gmake
+make = make
 
 # Which compiler to use
 #  CC is the compiler for the serial code
@@ -12,7 +12,7 @@
 OPTFLAGS = -O3
 
 # What options to be used by the compiler
-COPTIONS = 
+COPTIONS = -fPIC
 
 # Which loader to use
 LD = cc
@@ -33,22 +33,25 @@
 
 # In which directories to look for any additional libraries
 LIBDIR = -L../.. \
-         -L/usr/lib32/
+         -L../Lib \
+         -L/usr/lib/
 
 # Set some flags
 DEBUGFLAGS =
 
 # What additional libraries to link the programs with (eg., -lmpi)
-LIBS = -lmgrid -lm
-PARLIBS = -lparmgrid -lmgrid -lmpi -lm
+LIBEXT = dylib
+
+LIBS = -lMGridGen -lm
+PARLIBS = -lparmgrid -lMGridGen -lmpi -lm
 
 
 # What archiving to use
-AR = ar rv
+AR = gcc -dynamiclib -undefined dynamic_lookup -shared -o
 
 # What to use for indexing the archive
 #RANLIB = ranlib
-RANLIB = ar -ts
+RANLIB = true
 
 #--------------------------------------------------------------------------
 #