--- autoopts/Makefile.in.orig	2015-01-17 12:42:01.387596573 +0100
+++ autoopts/Makefile.in	2015-01-17 12:45:19.424582917 +0100
@@ -792,10 +792,10 @@
 	dir='$(DESTDIR)$(m4datadir)'; $(am__uninstall_files_from_dir)
 install-nobase_dataDATA: $(nobase_data_DATA)
 	@$(NORMAL_INSTALL)
-	@list='$(nobase_data_DATA)'; test -n "$(datadir)" || list=; \
+	@list='$(nobase_data_DATA)'; test -n "$(prefix)/libdata" || list=; \
 	if test -n "$$list"; then \
-	  echo " $(MKDIR_P) '$(DESTDIR)$(datadir)'"; \
-	  $(MKDIR_P) "$(DESTDIR)$(datadir)" || exit 1; \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(prefix)/libdata'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(prefix)/libdata" || exit 1; \
 	fi; \
 	$(am__nobase_list) | while read dir files; do \
 	  xfiles=; for file in $$files; do \
@@ -803,10 +803,10 @@
 	    else xfiles="$$xfiles $(srcdir)/$$file"; fi; done; \
 	  test -z "$$xfiles" || { \
 	    test "x$$dir" = x. || { \
-	      echo " $(MKDIR_P) '$(DESTDIR)$(datadir)/$$dir'"; \
-	      $(MKDIR_P) "$(DESTDIR)$(datadir)/$$dir"; }; \
-	    echo " $(INSTALL_DATA) $$xfiles '$(DESTDIR)$(datadir)/$$dir'"; \
-	    $(INSTALL_DATA) $$xfiles "$(DESTDIR)$(datadir)/$$dir" || exit $$?; }; \
+	      echo " $(MKDIR_P) '$(DESTDIR)$(prefix)/libdata/$$dir'"; \
+	      $(MKDIR_P) "$(DESTDIR)$(prefix)/libdata/$$dir"; }; \
+	    echo " $(INSTALL_DATA) $$xfiles '$(DESTDIR)$(prefix)/libdata/$$dir'"; \
+	    $(INSTALL_DATA) $$xfiles "$(DESTDIR)$(prefix)/libdata/$$dir" || exit $$?; }; \
 	done
 
 uninstall-nobase_dataDATA: