+
+# installation path options
+opts.Add('PREFIX', 'prefix for architecture-independent files', '/usr/local')
+opts.Add('EPREFIX', 'prefix for architecture-dependent files', '$PREFIX')
+opts.Add('BINDIR', 'user executables directory', '$EPREFIX/bin')
+#opts.Add('SBINDIR', 'system admin executables directory', '$EPREFIX/sbin')
+#opts.Add('LIBEXECDIR', 'program executables directory', '$EPREFIX/libexec')
+opts.Add('DATADIR', 'read-only architecture-independent data directory',
+ '$PREFIX/share')
+#opts.Add('SYSCONFDIR', 'read-only single-machine data directory', '$PREFIX/etc')
+#opts.Add('SHAREDSTATEDIR', 'modifiable architecture-independent data directory',
+# '$PREFIX/com')
+#opts.Add('LOCALSTATEDIR', 'modifiable single-machine data directory',
+# '$PREFIX/var')
+opts.Add('LIBDIR', 'object code libraries directory', '$EPREFIX/lib')
+opts.Add('INCLUDEDIR', 'C header files directory', '$PREFIX/include')
+#opts.Add('OLDINCLUDEDIR', 'C header files for non-gcc directory',
+# '$PREFIX/include')
+#opts.Add('INFODIR', 'info documentation directory', '$PREFIX/info')
+#opts.Add('MANDIR', 'man documentation directory', '$PREFIX/man')