···11+With Autoconf 2.69 (instead of 2.68), config.{guess,sub} are needed.
22+33+--- automake-1.11.2/tests/compile_f90_c_cxx.test 2011-12-20 21:56:29.000000000 +0100
44++++ automake-1.11.2/tests/compile_f90_c_cxx.test 2012-07-07 13:35:58.000000000 +0200
55+@@ -41,7 +41,7 @@ END
66+ : > baz.cc
77+88+ $ACLOCAL
99+-$AUTOMAKE
1010++$AUTOMAKE --add-missing
1111+1212+ # Look for the macros at the beginning of rules. Be careful, as there
1313+ # are literal tabs at the beginning of the search strings.