Fix PR automake/49: * automake.in (scan_autoconf_traces) <AC_CONFIG_AUX_DIR>: Diagnose calls to AC_CONFIG_AUX_DIR followings calls to AM_INIT_AUTOMAKE. * tests/auxdir.test, tests/auxdir2.test, tests/lex5.test, tests/mdate3.test, tests/multlib.test, tests/reqd2.test, tests/symlink.test, tests/txinfo8.test, tests/txinfo22.test, tests/yacc6.test, tests/yacc8.test: Fix to call AC_CONFIG_AUX_DIR before AM_INIT_AUTOMAKE. * tests/auxdir3.test: New file (exercise this diagnostic). * tests/Makefile.am (TESTS): Add auxdir3.test.