--- configure.in	2012-07-07 15:52:28.000000000 +0200
+++ configure.in	2013-05-31 21:56:05.155859911 +0200
@@ -8,6 +8,10 @@
 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_RANLIB
+AN_MAKEVAR([AR], [AC_PROG_AR])
+AN_PROGRAM([ar], [AC_PROG_AR])
+AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL(AR, ar, :)])
+AC_PROG_AR
 dnl Checks for libraries.
 
 AC_PATH_PROG(XML_CONFIG, xml2-config, no)
--- dia2code/Makefile.in	2007-01-06 18:34:14.000000000 +0100
+++ dia2code/Makefile.in	2013-05-31 21:56:46.765920940 +0200
@@ -208,7 +208,7 @@
 Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
 	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)
 
-AR = ar
+AR = @AR@
 
 clean-noinstLIBRARIES:
 	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)