--- src/Makefile.in.orig	2014-08-13 10:01:12.336035299 +0800
+++ src/Makefile.in	2014-08-13 10:03:06.196001156 +0800
@@ -118,10 +118,10 @@ maintainer-clean-binPROGRAMS:
 
 install-binPROGRAMS: $(bin_PROGRAMS)
 	$(NORMAL_INSTALL)
-	$(mkinstalldirs) $(bindir)
+	$(mkinstalldirs) $(DESTDIR)$(bindir)
 	list="$(bin_PROGRAMS)"; for p in $$list; do \
 	  if test -f $$p; then \
-	    $(INSTALL_PROGRAM) $$p $(bindir)/`echo $$p|sed '$(transform)'`; \
+	    $(INSTALL_PROGRAM) $$p $(DESTDIR)$(bindir)/`echo $$p|sed '$(transform)'`; \
 	  else :; fi; \
 	done
 
@@ -147,12 +147,12 @@ files: $(files_OBJECTS) $(files_DEPENDEN
 	$(LINK) $(files_OBJECTS) $(files_LDADD) $(LIBS)
 install-man: $(MANS)
 	$(NORMAL_INSTALL)
-	$(mkinstalldirs) $(mandir)/man1
+	$(mkinstalldirs) $(DESTDIR)$(mandir)/man1
 	sect=1;				\
 	inst=`echo "files" | sed '$(transform)'`.1; \
 	if test -f $(srcdir)/files.1; then file=$(srcdir)/files.1; \
 	else file=files.1; fi; \
-	$(INSTALL_DATA) $$file $(mandir)/man$$sect/$$inst
+	$(INSTALL_DATA) $$file $(DESTDIR)$(mandir)/man$$sect/$$inst
 
 uninstall-man:
 	inst=`echo "files" | sed '$(transform)'`.1; \
@@ -161,12 +161,12 @@ uninstall-man:
 
 install-offixDATA: $(offix_DATA)
 	$(NORMAL_INSTALL)
-	$(mkinstalldirs) $(offixdir)
+	$(mkinstalldirs) $(DESTDIR)$(offixdir)
 	list="$(offix_DATA)"; for p in $$list; do \
 	  if test -f $(srcdir)/$$p; then \
-	    $(INSTALL_DATA) $(srcdir)/$$p $(offixdir)/$$p; \
+	    $(INSTALL_DATA) $(srcdir)/$$p $(DESTDIR)$(offixdir)/$$p; \
 	  else if test -f $$p; then \
-	    $(INSTALL_DATA) $$p $(offixdir)/$$p; \
+	    $(INSTALL_DATA) $$p $(DESTDIR)$(offixdir)/$$p; \
 	  fi; fi; \
 	done