--- configure.ac	2013-05-08 11:36:02.000000000 +0200
+++ configure_new.ac	2013-07-25 21:00:04.251268899 +0200
@@ -5,6 +5,12 @@
 AC_PROG_CXX
 AC_HEADER_STDC
 AC_C_BIGENDIAN
+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
+
 
 if pkg-config --modversion vamp-sdk >/dev/null 2>&1; then
   echo "WARNING: A version of the Vamp plugin SDK is already installed."
--- Makefile.in	2013-05-08 11:36:02.000000000 +0200
+++ Makefile_new.in	2013-07-25 20:59:58.241260085 +0200
@@ -44,8 +44,8 @@
 
 # ar, ranlib
 #
-AR		= ar
-RANLIB		= ranlib
+AR		= @AR@
+RANLIB		= @RANLIB@
 
 # Libraries required for the plugins.
 #