$NetBSD: patch-ab,v 1.6 2010/06/16 22:16:31 gdt Exp $

This change is present post-2.94 in upstream git as
commit 01296e67701bac187d83a5a88395de3478326f93.

--- Makefile.in.orig	2010-06-16 11:40:45.000000000 +0000
+++ Makefile.in
@@ -1996,7 +1996,11 @@ gpsd_maskdump.c: gpsd.h-tail maskaudit.p
 
 # Install Python modules
 @HAVE_PYTHON_TRUE@install-exec-local:
-@HAVE_PYTHON_TRUE@	$(PYTHON) setup.py install --prefix=${prefix} --root=$(DESTDIR)
+@HAVE_PYTHON_TRUE@	if test -z "$(DESTDIR)"; then \
+@HAVE_PYTHON_TRUE@	$(PYTHON) setup.py install --prefix=${prefix}; \
+@HAVE_PYTHON_TRUE@	else \
+@HAVE_PYTHON_TRUE@	$(PYTHON) setup.py install --prefix=${prefix} --root=$(DESTDIR); \
+@HAVE_PYTHON_TRUE@	fi
 
 @HAVE_XSLT_PROCESSOR_TRUE@.xml.1:
 @HAVE_XSLT_PROCESSOR_TRUE@	$(MANGENERATOR) $(MANFLAGS) $(MANTARGET) $<
