diff -up xa-2.3.7/Makefile.make xa-2.3.7/Makefile
--- xa-2.3.7/Makefile.make	2014-12-27 19:45:21.000000000 +0100
+++ xa-2.3.7/Makefile	2015-01-03 15:36:18.000000000 +0100
@@ -17,11 +17,12 @@ LDFLAGS = -lc
 #CFLAGS =
 #LD = ld
 
-DESTDIR = /usr/local
+DESTDIR =
+PREFIX = /usr/local
 
-BINDIR = $(DESTDIR)/bin
-MANDIR = $(DESTDIR)/share/man/man1
-DOCDIR = $(DESTDIR)/share/doc
+BINDIR = $(DESTDIR)$(PREFIX)/bin
+MANDIR = $(DESTDIR)$(PREFIX)/share/man/man1
+DOCDIR = $(DESTDIR)$(PREFIX)/share/doc
 
 MKDIR = mkdir -p
 INSTALL = install
@@ -58,8 +59,8 @@ clean:
 install: xa uncpk
 	$(MKDIR) $(BINDIR)
 	$(MKDIR) $(MANDIR)
-	$(INSTALL) xa reloc65 ldo65 file65 printcbm uncpk $(BINDIR)
-	$(INSTALL) man/file65.1 man/ldo65.1 man/printcbm.1 man/reloc65.1 man/uncpk.1 man/xa.1 $(MANDIR)
+	$(INSTALL) -m 0755 xa reloc65 ldo65 file65 printcbm uncpk $(BINDIR)
+	$(INSTALL) -m 0644 man/file65.1 man/ldo65.1 man/printcbm.1 man/reloc65.1 man/uncpk.1 man/xa.1 $(MANDIR)
 	#$(MKDIR) $(DOCDIR)/xa65
 
 dist: clean