* Makefile.am (AUTOMAKE_OPTIONS): Add 1.5 and dist-bzip2.
(AMTAR): Help automake define it.
(INSTALL, install-data-hook): The INSTALL.txt trick is no longer
needed, 1.5 can have a macro and a target with the same name.
* m4/auxdir.m4, m4/cond.m4, m4/depend.m4, m4/install-sh.m4,
* m4/strip.m4: New.
* m4/init.m4, m4/sanity.m4: Update.
* doc/Makefile.am (CLEANFILES): 1.5 knows the texi2dvi files.
* lib/autoconf/Makefile.am, lib/autotest/Makefile.am,
* lib/m4sugar/Makefile.am, lib/autoscan/Makefile.am,
* lib/Autom4te/Makefile.am, man/Makefile.am: Use dist/nodist.
* lib/autoconf/version.in: Remove.
* lib/m4sugar/version.in: New.
* lib/m4sugar/m4sugar.m4 (m4_acversion, m4_version_prereq): New.
Adjust callers.
* bin/autoupdate.in: Distinguish M4sugar vs. Autoconf macros by
the name of the directory they're in, instead of the filename,
since version.m4 is now in m4sugar, but m4_acversion must not be
classified as an Autoconf macro.
($input_m4): Don't qualify the path to m4sugar.
Rather, pass autoconf_dir to m4.
* tests/Makefile.am (testsuite): Remove -I top_srcdir, unneeded.
* tests/suite.at: Require 2.52c.
their use in AC_CONFIG_COMMANDS for instance...
* lib/autoconf/general.m4, lib/autoconf/specific.m4,
* lib/autotest/general.m4: Rename the EOF tags as `_ACEOF',
`_CSEOF', or `_ATEOF', as appropriate.
* lib/m4sugar/Makefile.am, lib/autoconf/Makefile.am,
* lib/autotest/Makefile.am (check-local): Enforce this constraint.
