diff -urN postgresql-7.1.org/src/interfaces/perl5/GNUmakefile postgresql-7.1/src/interfaces/perl5/GNUmakefile
--- postgresql-7.1.org/src/interfaces/perl5/GNUmakefile	Thu Apr 19 21:50:23 2001
+++ postgresql-7.1/src/interfaces/perl5/GNUmakefile	Thu Apr 19 22:49:37 2001
@@ -40,8 +40,8 @@
 	  POSTGRES_INCLUDE="$(includedir)" \
 	  $(PERL) $(srcdir)/Makefile.PL
 	$(MAKE) -f Makefile all
-	-@if [ -w "`$(MAKE) --quiet -f Makefile echo-installdir`" ]; then \
-		$(MAKE) -f Makefile install; \
+	-@if [ -w "`$(MAKE) --quiet -f Makefile DESTDIR=\"$(DESTDIR)\" echo-installdir`" ]; then \
+		$(MAKE) -f Makefile DESTDIR=\"$(DESTDIR)\" install; \
 		$(MAKE) clean; \
 	else \
 		echo "*****" ;\
diff -urN postgresql-7.1.org/src/interfaces/python/GNUmakefile postgresql-7.1/src/interfaces/python/GNUmakefile
--- postgresql-7.1.org/src/interfaces/python/GNUmakefile	Thu Apr 19 21:50:23 2001
+++ postgresql-7.1/src/interfaces/python/GNUmakefile	Thu Apr 19 23:24:36 2001
@@ -34,8 +34,8 @@
 
 install: all
 	@echo "Installing Python module"
-	@if ( $(INSTALL_DATA) pg.py $(python_moduledir) && \
-	    $(MAKE) -f Makefile install ); then : ; else \
+	@if ( $(INSTALL_DATA) pg.py $(DESTDIR)$(python_moduledir) && \
+	    $(MAKE) -f Makefile LIBDIR=\"$(LIBDIR)\" install ); then : ; else \
 		echo "*****" ;\
 		echo "* Skipping the installation of the Python interface module for lack"; \
 		echo "* of permissions. To install it, change to the directory"; \
diff -urN postgresql-7.1.org/src/pl/plperl/GNUmakefile postgresql-7.1/src/pl/plperl/GNUmakefile
--- postgresql-7.1.org/src/pl/plperl/GNUmakefile	Thu Apr 19 21:50:23 2001
+++ postgresql-7.1/src/pl/plperl/GNUmakefile	Thu Apr 19 21:50:33 2001
@@ -16,7 +16,7 @@
 	$(PERL) $<
 
 install: all installdirs
-	$(MAKE) -f Makefile install
+	$(MAKE) -f Makefile install DESTDIR=\"$(DESTDIR)\"
 
 installdirs:
 	$(mkinstalldirs) $(DESTDIR)$(plperl_installdir)
diff -urN postgresql-7.1.org/src/pl/plperl/Makefile.PL postgresql-7.1/src/pl/plperl/Makefile.PL
--- postgresql-7.1.org/src/pl/plperl/Makefile.PL	Thu Apr 19 21:50:23 2001
+++ postgresql-7.1/src/pl/plperl/Makefile.PL	Thu Apr 19 21:50:53 2001
@@ -84,7 +84,7 @@
 
 qq[
 install :: all
-	cp \$(INST_DYNAMIC) $ENV{plperl_installdir}
+	cp \$(INST_DYNAMIC) \$(DESTDIR)$ENV{plperl_installdir}
 ];
 
 }