diff -ru gdal-1.2.6/GNUmakefile gdal-1.2.6.fixed/GNUmakefile
--- gdal-1.2.6/GNUmakefile	2005-03-02 04:55:40.000000000 +1100
+++ gdal-1.2.6.fixed/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -126,7 +126,7 @@
 
 install-docs:
 	(cd ogr; $(MAKE) install-docs)
-	$(INSTALL_DIR) $(INST_DOCS)/gdal
+	$(INSTALL_DIR) $(DESTDIR)$(INST_DOCS)/gdal
 	cp html/*.* $(INST_DOCS)/gdal
 
 web-update:	docs
@@ -135,9 +135,9 @@
 install:	default install-actions
 
 install-actions: install-lib
-	$(INSTALL_DIR) $(INST_BIN)
-	$(INSTALL_DIR) $(INST_DATA)
-	$(INSTALL_DIR) $(INST_INCLUDE)
+	$(INSTALL_DIR) $(DESTDIR)$(INST_BIN)
+	$(INSTALL_DIR) $(DESTDIR)$(INST_DATA)
+	$(INSTALL_DIR) $(DESTDIR)$(INST_INCLUDE)
 	(cd port; $(MAKE) install)
 	(cd gcore; $(MAKE) install)
 	(cd frmts; $(MAKE) install)
@@ -148,14 +148,14 @@
 ifneq ($(PYTHON),no)
 	(cd pymod; $(MAKE) install)
 endif
-	for f in data/*.* ; do $(INSTALL_DATA) $$f $(INST_DATA) ; done
+	for f in data/*.* ; do $(INSTALL_DATA) $$f $(DESTDIR)$(INST_DATA) ; done
 	$(LIBTOOL_FINISH) $(INST_LIB)
 
 ifeq ($(HAVE_LIBTOOL),yes)
 
 install-lib:
-	$(INSTALL_DIR) $(INST_LIB)
-	for f in $(LIBGDAL-yes) ; do $(INSTALL_LIB) $$f $(INST_LIB) ; done
+	$(INSTALL_DIR) $(DESTDIR)$(INST_LIB)
+	for f in $(LIBGDAL-yes) ; do $(INSTALL_LIB) $$f $(DESTDIR)$(INST_LIB) ; done
 
 else
 
@@ -165,11 +165,11 @@
 GDAL_SLIB_B	=	$(notdir $(GDAL_SLIB))
 
 install-lib:
-	$(INSTALL_DIR) $(INST_LIB)
+	$(INSTALL_DIR) $(DESTDIR)$(INST_LIB)
 	rm -f $(INST_LIB)/$(GDAL_SLIB_B)
 	rm -f $(INST_LIB)/$(GDAL_SLIB_B).$(GDAL_VER_MAJOR)
 	rm -f $(INST_LIB)/$(GDAL_SLIB_B).$(GDAL_VER)
-	$(INSTALL_LIB) $(GDAL_SLIB) $(INST_LIB)/$(GDAL_SLIB_B).$(GDAL_VER)
+	$(INSTALL_LIB) $(GDAL_SLIB) $(DESTDIR)$(INST_LIB)/$(GDAL_SLIB_B).$(GDAL_VER)
 	(cd $(INST_LIB) ; \
 	 ln -s $(GDAL_SLIB_B).$(GDAL_VER_MAJOR) $(GDAL_SLIB_B))
 	(cd $(INST_LIB) ; \
@@ -178,8 +178,8 @@
 else
 
 install-lib:
-	$(INSTALL_DIR) $(INST_LIB)
-	$(INSTALL_LIB) $(GDAL_LIB) $(INST_LIB)
+	$(INSTALL_DIR) $(DESTDIR)$(INST_LIB)
+	$(INSTALL_LIB) $(GDAL_LIB) $(DESTDIR)$(INST_LIB)
 
 endif # HAVE_LD_SHARED=no 
 
diff -ru gdal-1.2.6/alg/GNUmakefile gdal-1.2.6.fixed/alg/GNUmakefile
--- gdal-1.2.6/alg/GNUmakefile	2004-12-27 08:26:15.000000000 +1100
+++ gdal-1.2.6.fixed/alg/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -23,7 +23,7 @@
 	(cd ..; $(MAKE) docs)
 
 install:
-	for f in *.h ; do $(INSTALL_DATA) $$f $(INST_INCLUDE) ; done
+	for f in *.h ; do $(INSTALL_DATA) $$f $(DESTDIR)$(INST_INCLUDE) ; done
 
 lib:	$(OBJ)
 	(cd .. ; $(MAKE) force-lib)
diff -ru gdal-1.2.6/apps/GNUmakefile gdal-1.2.6.fixed/apps/GNUmakefile
--- gdal-1.2.6/apps/GNUmakefile	2004-08-12 05:07:21.000000000 +1000
+++ gdal-1.2.6.fixed/apps/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -85,6 +85,6 @@
 
 
 install: default
-	for f in $(BIN_LIST) ; do $(INSTALL) $$f $(INST_BIN) ; done
-	$(INSTALL) gdal-config-inst $(INST_BIN)/gdal-config
+	for f in $(BIN_LIST) ; do $(INSTALL) $$f $(DESTDIR)$(INST_BIN) ; done
+	$(INSTALL) gdal-config-inst $(DESTDIR)$(INST_BIN)/gdal-config
 
diff -ru gdal-1.2.6/frmts/mem/GNUmakefile gdal-1.2.6.fixed/frmts/mem/GNUmakefile
--- gdal-1.2.6/frmts/mem/GNUmakefile	2005-01-25 05:09:57.000000000 +1100
+++ gdal-1.2.6.fixed/frmts/mem/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -15,4 +15,4 @@
 install-obj:	$(O_OBJ)
 
 install:
-	$(INSTALL_DATA) memdataset.h $(INST_INCLUDE)
+	$(INSTALL_DATA) memdataset.h $(DESTDIR)$(INST_INCLUDE)
diff -ru gdal-1.2.6/frmts/raw/GNUmakefile gdal-1.2.6.fixed/frmts/raw/GNUmakefile
--- gdal-1.2.6/frmts/raw/GNUmakefile	2005-01-25 05:09:57.000000000 +1100
+++ gdal-1.2.6.fixed/frmts/raw/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -21,4 +21,4 @@
 $(OBJ) $(O_OBJ):	rawdataset.h
 
 install:
-	$(INSTALL_DATA) rawdataset.h $(INST_INCLUDE)
+	$(INSTALL_DATA) rawdataset.h $(DESTDIR)$(INST_INCLUDE)
diff -ru gdal-1.2.6/frmts/vrt/GNUmakefile gdal-1.2.6.fixed/frmts/vrt/GNUmakefile
--- gdal-1.2.6/frmts/vrt/GNUmakefile	2005-01-25 05:09:57.000000000 +1100
+++ gdal-1.2.6.fixed/frmts/vrt/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -19,4 +19,4 @@
 $(OBJ) $(O_OBJ):	vrtdataset.h
 
 install:
-	$(INSTALL_DATA) vrtdataset.h $(INST_INCLUDE)
+	$(INSTALL_DATA) vrtdataset.h $(DESTDIR)$(INST_INCLUDE)
diff -ru gdal-1.2.6/gcore/GNUmakefile gdal-1.2.6.fixed/gcore/GNUmakefile
--- gdal-1.2.6/gcore/GNUmakefile	2004-04-29 23:43:34.000000000 +1000
+++ gdal-1.2.6.fixed/gcore/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -31,4 +31,4 @@
 		$*.cpp -o $*.o
 
 install:
-	for f in *.h ; do $(INSTALL_DATA) $$f $(INST_INCLUDE) ; done
+	for f in *.h ; do $(INSTALL_DATA) $$f $(DESTDIR)$(INST_INCLUDE) ; done
diff -ru gdal-1.2.6/man/GNUmakefile gdal-1.2.6.fixed/man/GNUmakefile
--- gdal-1.2.6/man/GNUmakefile	2004-02-21 04:26:13.000000000 +1100
+++ gdal-1.2.6.fixed/man/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -5,5 +5,5 @@
 include ../GDALmake.opt
 
 install:
-	$(INSTALL_DIR) $(INST_MAN)/man1
-	for f in $(MAN1_FILES) ; do $(INSTALL_DATA) $$f $(INST_MAN)/man1 ; done
+	$(INSTALL_DIR) $(DESTDIR)$(INST_MAN)/man1
+	for f in $(MAN1_FILES) ; do $(INSTALL_DATA) $$f $(DESTDIR)$(INST_MAN)/man1 ; done
diff -ru gdal-1.2.6/ogr/GNUmakefile gdal-1.2.6.fixed/ogr/GNUmakefile
--- gdal-1.2.6/ogr/GNUmakefile	2005-03-12 01:28:05.000000000 +1100
+++ gdal-1.2.6.fixed/ogr/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -79,7 +79,7 @@
 	cp ogr_feature_style.html html
 
 install-docs:
-	$(INSTALL_DIR) $(INST_DOCS)/ogr
+	$(INSTALL_DIR) $(DESTDIR)$(INST_DOCS)/ogr
 	cp html/* $(INST_DOCS)/ogr
 
 gdalso:	$(GDAL_SLIB)
@@ -120,14 +120,14 @@
 
 ifeq ($(OGR_ENABLED),yes)
 install-full:	apps
-	$(INSTALL) ogr2ogr $(INST_BIN)
-	$(INSTALL) ogrinfo $(INST_BIN)
-	$(INSTALL) ogrtindex $(INST_BIN)
+	$(INSTALL) ogr2ogr $(DESTDIR)$(INST_BIN)
+	$(INSTALL) ogrinfo $(DESTDIR)$(INST_BIN)
+	$(INSTALL) ogrtindex $(DESTDIR)$(INST_BIN)
 else
 install-full:
 endif
 
 install:	install-full
 	for f in $(INST_H_FILES) ; \
-	    do $(INSTALL_DATA) $$f $(INST_INCLUDE) ; \
+	    do $(INSTALL_DATA) $$f $(DESTDIR)$(INST_INCLUDE) ; \
 	done
diff -ru gdal-1.2.6/port/GNUmakefile gdal-1.2.6.fixed/port/GNUmakefile
--- gdal-1.2.6/port/GNUmakefile	2003-12-29 04:25:00.000000000 +1100
+++ gdal-1.2.6.fixed/port/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -25,7 +25,7 @@
 	$(RM) *.o $(LIB)
 
 install:
-	for f in *.h ; do $(INSTALL_DATA) $$f $(INST_INCLUDE) ; done
+	for f in *.h ; do $(INSTALL_DATA) $$f $(DESTDIR)$(INST_INCLUDE) ; done
 
 xmlreformat:	xmlreformat.o 
 	$(CXX) $(CXXFLAGS) xmlreformat.o $(CONFIG_LIBS) -o xmlreformat
diff -ru gdal-1.2.6/pymod/GNUmakefile gdal-1.2.6.fixed/pymod/GNUmakefile
--- gdal-1.2.6/pymod/GNUmakefile	2005-02-01 09:07:02.000000000 +1100
+++ gdal-1.2.6.fixed/pymod/GNUmakefile	2005-10-02 18:22:05.000000000 +1000
@@ -45,9 +45,9 @@
 
 # special care is taken so that python scripts are installed as executables
 install:	$(GDALMODULE_SO)
-	$(INSTALL_DIR) $(INST_PYMOD)
-	$(INSTALL_LIB) $(GDALMODULE_SO) $(INST_PYMOD)
-	for f in $(PY_COMMANDS) ; do $(INSTALL) $$f $(INST_BIN) ; done
-	for f in $(PY_MODULES) ; do $(INSTALL_DATA) $$f $(INST_PYMOD) ; done
+	$(INSTALL_DIR) $(DESTDIR)$(INST_PYMOD)
+	$(INSTALL_LIB) $(GDALMODULE_SO) $(DESTDIR)$(INST_PYMOD)
+	for f in $(PY_COMMANDS) ; do $(INSTALL) $$f $(DESTDIR)$(INST_BIN) ; done
+	for f in $(PY_MODULES) ; do $(INSTALL_DATA) $$f $(DESTDIR)$(INST_PYMOD) ; done
 	# ugh! spurius relinking leaves a file owned by root into .libs/.
 	rm -f .libs/*.soT
--- gdal-1.2.6/GDALmake.opt.in.orig	2005-10-02 21:07:42.000000000 +1000
+++ gdal-1.2.6/GDALmake.opt.in	2005-10-02 21:08:23.000000000 +1000
@@ -50,7 +50,7 @@
 exec_prefix	=	@exec_prefix@
 INST_PREFIX	=	@exec_prefix@
 INST_INCLUDE	=	@includedir@
-INST_DATA 	=	@datadir@
+INST_DATA 	=	@datadir@/gdal
 INST_LIB	=	@libdir@
 INST_BIN	=	@bindir@
 INST_PYMOD      =       @pymoddir@