* tests/atspecific.m4 (AT_DATA_M4SUGAR, AT_DATA_M4SH)

* tests/atspecific.m4 (AT_DATA_M4SUGAR, AT_DATA_M4SH)
(AT_DATA_AUTOCONF):  Also protect @&t@ from autom4te.
(AT_CHECK_AUTOCONF, AT_CHECK_AUTOHEADER): Pass no --include
option.
(AT_CHECK_CONFIGURE): Use absolute paths.
(_AT_CHECK_AC_MACRO): Create aclocal.m4 with AC_STATE_SAVE in it.
The problem is still the old one: there is no means in M4 (that I
know about) to create a defining macro, because there is no means
to create `$1' etc., therefore, the defining macro ``swallows''
all the arguments meant to the defined macro.