--- a/jpeg/Makefile	2005-02-27 19:11:07.000000000 -0500
+++ b/jpeg/Makefile	2008-03-19 13:17:46.000000000 -0400
@@ -65,14 +65,14 @@ clean:
 #
 
 install:
-	echo "Installing libfltk_jpeg$(LIBEXT) in $(libdir)..."
-	-$(MKDIR) $(libdir)
-	$(RM) $(libdir)/libfltk_jpeg$(LIBEXT)
-	$(CP) $(LIBJPEG) $(libdir)
-	$(RANLIB) $(libdir)/libfltk_jpeg$(LIBEXT)
-	echo "Installing jpeg headers in $(includedir)/FL/images..."
-	-$(MKDIR) $(includedir)/FL/images
-	$(CP) jconfig.h jerror.h jmorecfg.h jpeglib.h $(includedir)/FL/images
+	echo "Installing libfltk_jpeg$(LIBEXT) in $(DESTDIR)$(libdir)..."
+	-$(MKDIR) $(DESTDIR)$(libdir)
+	$(RM) $(DESTDIR)$(libdir)/libfltk_jpeg$(LIBEXT)
+	$(CP) $(LIBJPEG) $(DESTDIR)$(libdir)
+	$(RANLIB) $(DESTDIR)$(libdir)/libfltk_jpeg$(LIBEXT)
+	echo "Installing jpeg headers in $(DESTDIR)$(includedir)/FL/images..."
+	-$(MKDIR) $(DESTDIR)$(includedir)/FL/images
+	$(CP) jconfig.h jerror.h jmorecfg.h jpeglib.h $(DESTDIR)$(includedir)/FL/images
 
 
 #
@@ -81,12 +81,12 @@ install:
 
 uninstall:
 	echo "Uninstalling libfltk_jpeg$(LIBEXT) in $(libdir)..."
-	$(RM) $(libdir)/libfltk_jpeg$(LIBEXT)
+	$(RM) $(DESTDIR)$(libdir)/libfltk_jpeg$(LIBEXT)
 	echo "Uninstalling jpeg headers in $(includedir)/FL/images..."
-	$(RM) $(includedir)/FL/images/jconfig.h
-	$(RM) $(includedir)/FL/images/jerror.h
-	$(RM) $(includedir)/FL/images/jmorecfg.h
-	$(RM) $(includedir)/FL/images/jpeglib.h
+	$(RM) $(DESTDIR)$(includedir)/FL/images/jconfig.h
+	$(RM) $(DESTDIR)$(includedir)/FL/images/jerror.h
+	$(RM) $(DESTDIR)$(includedir)/FL/images/jmorecfg.h
+	$(RM) $(DESTDIR)$(includedir)/FL/images/jpeglib.h
 
 
 #

--- a/png/Makefile	2005-02-24 16:55:12.000000000 -0500
+++ b/png/Makefile	2008-03-19 13:18:38.000000000 -0400
@@ -57,14 +57,14 @@ clean:
 #
 
 install: $(LIBPNG)
-	echo "Installing libfltk_png$(LIBEXT) in $(libdir)..."
-	-$(MKDIR) $(libdir)
-	$(RM) $(libdir)/libfltk_png$(LIBEXT)
-	$(CP) $(LIBPNG) $(libdir)
-	$(RANLIB) $(libdir)/libfltk_png$(LIBEXT)
-	echo "Installing png headers in $(includedir)/FL/images..."
-	-$(MKDIR) $(includedir)/FL/images
-	$(CP) png.h pngconf.h $(includedir)/FL/images
+	echo "Installing libfltk_png$(LIBEXT) in $(DESTDIR)$(libdir)..."
+	-$(MKDIR) $(DESTDIR)$(libdir)
+	$(RM) $(DESTDIR)$(libdir)/libfltk_png$(LIBEXT)
+	$(CP) $(LIBPNG) $(DESTDIR)$(libdir)
+	$(RANLIB) $(DESTDIR)$(libdir)/libfltk_png$(LIBEXT)
+	echo "Installing png headers in $(DESTDIR)$(includedir)/FL/images..."
+	-$(MKDIR) $(DESTDIR)$(includedir)/FL/images
+	$(CP) png.h pngconf.h $(DESTDIR)$(includedir)/FL/images
 
 
 #
@@ -72,11 +72,11 @@ install: $(LIBPNG)
 #
 
 uninstall:
-	echo "Uninstalling libfltk_png$(LIBEXT) in $(libdir)..."
-	$(RM) $(libdir)/libfltk_png$(LIBEXT)
-	echo "Uninstalling png headers in $(includedir)/FL/images..."
-	$(RM) $(includedir)/FL/images/png.h
-	$(RM) $(includedir)/FL/images/pngconf.h
+	echo "Uninstalling libfltk_png$(LIBEXT) in $(DESTDIR)$(libdir)..."
+	$(RM) $(DESTDIR)$(libdir)/libfltk_png$(LIBEXT)
+	echo "Uninstalling png headers in $(DESTDIR)$(includedir)/FL/images..."
+	$(RM) $(DESTDIR)$(includedir)/FL/images/png.h
+	$(RM) $(DESTDIR)$(includedir)/FL/images/pngconf.h
 
 
 #

--- a/zlib/Makefile	2005-02-24 16:55:12.000000000 -0500
+++ b/zlib/Makefile	2008-03-19 13:20:34.000000000 -0400
@@ -57,14 +57,14 @@ clean:
 #
 
 install: $(LIBZ)
-	echo "Installing libfltk_z$(LIBEXT) in $(libdir)..."
-	-$(MKDIR) $(libdir)
-	$(RM) $(libdir)/libfltk_z$(LIBEXT)
-	$(CP) $(LIBZ) $(libdir)
-	$(RANLIB) $(libdir)/libfltk_z$(LIBEXT)
-	echo "Installing zlib headers in $(includedir)/FL/images..."
-	-$(MKDIR) $(includedir)/FL/images
-	$(CP) zconf.h zlib.h zutil.h $(includedir)/FL/images
+	echo "Installing libfltk_z$(LIBEXT) in $(DESTDIR)$(libdir)..."
+	-$(MKDIR) $(DESTDIR)$(libdir)
+	$(RM) $(DESTDIR)$(libdir)/libfltk_z$(LIBEXT)
+	$(CP) $(LIBZ) $(DESTDIR)$(libdir)
+	$(RANLIB) $(DESTDIR)$(libdir)/libfltk_z$(LIBEXT)
+	echo "Installing zlib headers in $(DESTDIR)$(includedir)/FL/images..."
+	-$(MKDIR) $(DESTDIR)$(includedir)/FL/images
+	$(CP) zconf.h zlib.h zutil.h $(DESTDIR)$(includedir)/FL/images
 
 
 #
@@ -72,12 +72,12 @@ install: $(LIBZ)
 #
 
 uninstall:
-	echo "Uninstalling libfltk_z$(LIBEXT) in $(libdir)..."
-	$(RM) $(libdir)/libfltk_z$(LIBEXT)
-	echo "Uninstalling zlib headers in $(includedir)/FL/images..."
-	$(RM) $(includedir)/FL/images/zconf.h
-	$(RM) $(includedir)/FL/images/zlib.h
-	$(RM) $(includedir)/FL/images/zutil.h
+	echo "Uninstalling libfltk_z$(LIBEXT) in $(DESTDIR)$(libdir)..."
+	$(RM) $(DESTDIR)$(libdir)/libfltk_z$(LIBEXT)
+	echo "Uninstalling zlib headers in $(DESTDIR)$(includedir)/FL/images..."
+	$(RM) $(DESTDIR)$(includedir)/FL/images/zconf.h
+	$(RM) $(DESTDIR)$(includedir)/FL/images/zlib.h
+	$(RM) $(DESTDIR)$(includedir)/FL/images/zutil.h
 
 
 #