--- xa-2.3.7/Makefile.orig	2014-12-27 19:45:21.000000000 +0100
+++ xa-2.3.7/Makefile	2015-07-08 10:59:52.000313538 +0200
@@ -17,11 +17,12 @@
 #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
@@ -32,13 +33,13 @@
 	rm -f xa
 
 xa:
-	(cd src && LD=${LD} CC="${CC} ${CFLAGS}" ${MAKE})
+	(cd src && LD=${LD} CC="${CC}" CFLAGS="${CFLAGS}" ${MAKE})
 
 load:	
-	(cd loader && CC="${CC} ${CFLAGS}" ${MAKE})
+	(cd loader && CC="${CC}" CFLAGS="${CFLAGS}" ${MAKE})
 
 uncpk:
-	(cd misc && CC="${CC} ${CFLAGS}" ${MAKE})
+	(cd misc && CC="${CC}" CFLAGS="${CFLAGS}" ${MAKE})
 
 dos: clean
 	(cd src && LD=gcc-go32 CC=gcc-go32 CFLAGS="-W -Wall -pedantic" ${MAKE})
@@ -58,8 +59,8 @@
 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