diff -Naur libacpi-0.2.orig/Makefile libacpi-0.2/Makefile
--- libacpi-0.2.orig/Makefile	2007-07-29 14:09:34.000000000 +0200
+++ libacpi-0.2/Makefile	2008-05-06 23:09:14.000000000 +0200
@@ -40,25 +40,23 @@
 install: all
 	@echo installing header to ${DESTDIR}${PREFIX}/include
 	@mkdir -p ${DESTDIR}${PREFIX}/include
-	@cp -f libacpi.h ${DESTDIR}${PREFIX}/include
+	@cp -f -p libacpi.h ${DESTDIR}${PREFIX}/include
 	@chmod 644 ${DESTDIR}${PREFIX}/include/libacpi.h
-	@echo installing library to ${DESTDIR}${PREFIX}/lib
-	@mkdir -p ${DESTDIR}${PREFIX}/lib
-	@cp -f libacpi.a ${DESTDIR}${PREFIX}/lib
-	@chmod 644 ${DESTDIR}${PREFIX}/lib/libacpi.a
-	@cp -f ${SONAME} ${DESTDIR}${PREFIX}/lib/
-	@chmod 644 ${DESTDIR}${PREFIX}/lib/${SONAME}
-	@ln -s ${SONAME} ${DESTDIR}${PREFIX}/lib/libacpi.so
+	@echo installing library to ${DESTDIR}${LIBDIR}
+	@mkdir -p ${DESTDIR}${LIBDIR}
+	@cp -f -p ${SONAME} ${DESTDIR}${LIBDIR}/
+	@chmod 644 ${DESTDIR}${LIBDIR}/${SONAME}
+	@ln -s ${SONAME} ${DESTDIR}${LIBDIR}/libacpi.so
 	@echo installing test-libacpi to ${DESTDIR}${PREFIX}/bin
 	@mkdir -p ${DESTDIR}${PREFIX}/bin
-	@cp -f test-libacpi ${DESTDIR}${PREFIX}/bin
+	@cp -f -p test-libacpi ${DESTDIR}${PREFIX}/bin
 	@chmod 755 ${DESTDIR}${PREFIX}/bin/test-libacpi
 	@echo installing manual page to ${DESTDIR}${MANPREFIX}/man3
 	@mkdir -p ${DESTDIR}${MANPREFIX}/man3
-	@cp libacpi.3 ${DESTDIR}${MANPREFIX}/man3
+	@cp -p libacpi.3 ${DESTDIR}${MANPREFIX}/man3
 	@echo installing documentation and misc files to ${DESTDIR}${PREFIX}/share/doc/libacpi
 	@mkdir -p ${DESTDIR}${PREFIX}/share/doc/libacpi
-	@cp -r AUTHORS CHANGES README LICENSE doc ${DESTDIR}${PREFIX}/share/doc/libacpi
+	@cp -r -p AUTHORS CHANGES README LICENSE doc ${DESTDIR}${PREFIX}/share/doc/libacpi
 	@echo finished installation
 
 uninstall: