--- config/Make.common.rules.orig	2016-10-05 16:59:08.000000000 +0200
+++ config/Make.common.rules	2016-10-11 22:39:50.774367911 +0200
@@ -19,7 +19,8 @@
 SHORT_VERSION   = 3.6
 SOVERSION	= 36
 
-INSTALL		= cp -fp
+override DESTDIR	=
+INSTALL		= %%INSTALL_PROGRAM%%
 INSTALL_PROGRAM	= ${INSTALL}
 INSTALL_LIBRARY	= ${INSTALL}
 INSTALL_DATA	= ${INSTALL}
@@ -53,13 +54,13 @@
 #
 # usr_dir_install means we want to install with a /usr style layout.
 #
-ifeq ($(prefix), /usr)
-    usr_dir_install = 1
-endif
-
-ifeq ($(prefix), /usr/local)
-    usr_dir_install = 1
-endif
+#ifeq ($(prefix), /usr)
+#    usr_dir_install = 1
+#endif
+#
+#ifeq ($(prefix), /usr/local)
+#    usr_dir_install = 1
+#endif
 
 #
 # A /usr style layout can be forced by setting USR_DIR_INSTALL=yes.
@@ -507,12 +508,12 @@
 		fi ; \
 	fi
 
-	@if test ! -f $(DESTDIR)$(install_docdir)/ICE_LICENSE$(TEXT_EXTENSION) ; \
+	@if test ! -f $(DESTDIR)$(install_slicedir)/ICE_LICENSE$(TEXT_EXTENSION) ; \
 	then \
-		$(call installdata,$(top_srcdir)/../ICE_LICENSE$(TEXT_EXTENSION),$(DESTDIR)$(install_docdir)) ; \
+		$(call installdata,$(top_srcdir)/../ICE_LICENSE$(TEXT_EXTENSION),$(DESTDIR)$(install_slicedir)) ; \
 	fi
 
-	@if test ! -f $(DESTDIR)$(install_docdir)/LICENSE$(TEXT_EXTENSION) ; \
+	@if test ! -f $(DESTDIR)$(install_slicedir)/LICENSE$(TEXT_EXTENSION) ; \
 	then \
-		$(call installdata,$(top_srcdir)/../LICENSE$(TEXT_EXTENSION),$(DESTDIR)$(install_docdir)) ; \
+		$(call installdata,$(top_srcdir)/../LICENSE$(TEXT_EXTENSION),$(DESTDIR)$(install_slicedir)) ; \
 	fi