--- Makefile.mac.orig	2017-07-27 20:41:20.000000000 -0500
+++ Makefile.mac	2018-05-31 21:57:18.000000000 -0500
@@ -1,9 +1,9 @@
+prefix=__PREFIX__
 CC=gcc
 CXX=clang++
 FATBINFLAGS=-arch x86_64 -arch i386 -mmacosx-version-min=10.4
-CFLAGS=$(FATBINFLAGS) -O2 -D_FILE_OFFSET_BITS=64 -g
-#CXXFLAGS=-O2 -Wall -D_FILE_OFFSET_BITS=64 -D USE_UTF16 -I/opt/local/include -I/usr/local/include -I/opt/local/include -g
-CXXFLAGS=$(FATBINFLAGS) -O2 -Wall -D_FILE_OFFSET_BITS=64 -I/opt/local/include -I /usr/local/include -I/opt/local/include -g
+CFLAGS=$(FATBINFLAGS) -D_FILE_OFFSET_BITS=64 -g
+CXXFLAGS=$(FATBINFLAGS) -Wall -D_FILE_OFFSET_BITS=64 -I$(prefix)/include -g
 LIB_NAMES=crc32 support guid gptpart mbrpart basicmbr mbr gpt bsd parttypes attributes diskio diskio-unix
 MBR_LIBS=support diskio diskio-unix basicmbr mbrpart
 #LIB_SRCS=$(NAMES:=.cc)
@@ -19,12 +19,11 @@
 #	$(CXX) $(LIB_OBJS) -L/usr/lib -licucore gpttext.o gdisk.o -o gdisk
 
 cgdisk: $(LIB_OBJS) cgdisk.o gptcurses.o
-	$(CXX) $(LIB_OBJS) cgdisk.o gptcurses.o /opt/local/lib/libncurses.a $(LDFLAGS) $(FATBINFLAGS) -o cgdisk
+	$(CXX) $(LIB_OBJS) cgdisk.o gptcurses.o $(prefix)/lib/libncurses.dylib $(LDFLAGS) $(FATBINFLAGS) -o cgdisk
 #	$(CXX) $(LIB_OBJS) cgdisk.o gptcurses.o $(LDFLAGS) -licucore -lncurses -o cgdisk
 
 sgdisk: $(LIB_OBJS) gptcl.o sgdisk.o
-#	$(CXX) $(LIB_OBJS) gptcl.o sgdisk.o /opt/local/lib/libiconv.a /opt/local/lib/libintl.a /opt/local/lib/libpopt.a $(FATBINFLAGS) -o sgdisk
-	$(CXX) $(LIB_OBJS) gptcl.o sgdisk.o -L/opt/local/lib -lpopt $(FATBINFLAGS) -o sgdisk
+	$(CXX) $(LIB_OBJS) gptcl.o sgdisk.o -L$(prefix)/lib -lpopt $(FATBINFLAGS) -o sgdisk
 #	$(CXX) $(LIB_OBJS) gptcl.o sgdisk.o -L/sw/lib -licucore -lpopt -o sgdisk
 
 fixparts: $(MBR_LIB_OBJS) fixparts.o