--- win/configure.in.mingw32	2011-11-04 13:47:58.000000000 +0100
+++ win/configure.in	2012-08-03 13:57:52.175895099 +0200
@@ -56,9 +56,17 @@
 AC_C_INLINE
 AC_HEADER_STDC
 
-AC_CHECK_TOOL(AR, ar)
-AC_CHECK_TOOL(RANLIB, ranlib)
-AC_CHECK_TOOL(RC, windres)
+if test "${target_alias}" = "i686-w64-mingw32" ; then
+   AC_CHECK_TOOL(AR, i686-w64-mingw32-ar)
+   AC_CHECK_TOOL(RANLIB, i686-w64-mingw32-ranlib)
+   AC_CHECK_TOOL(RC, i686-w64-mingw32-windres)
+fi
+if test "${target_alias}" = "x86_64-w64-mingw32" ; then
+   AC_CHECK_TOOL(AR, x86_64-w64-mingw32-ar)
+   AC_CHECK_TOOL(RANLIB, x86_64-w64-mingw32-ranlib)
+   AC_CHECK_TOOL(RC, x86_64-w64-mingw32-windres)
+fi
+
 
 #--------------------------------------------------------------------
 # Checks to see if the make program sets the $MAKE variable.