--- docs/Makefile.in	2017-06-07 08:58:58.865890359 +1000
+++ docs/Makefile.in-new	2017-06-07 12:05:49.719465922 +1000
@@ -1,6 +1,6 @@
 prefix = @prefix@
-docdir = $(prefix)/share/doc/gps
-sharedir = $(prefix)/share/gps
+docdir = $(DESTDIR)/$(prefix)/share/doc/gps
+sharedir = $(DESTDIR)/$(prefix)/share/gps
 
 MKDIR = mkdir -p
 INSTALL = @INSTALL@