automake: Update to version 1.16.5

automake: Update to version 1.16.5

- Update from version 1.16.3 to 1.16.5
- Update of rootfile not required
- Chyangelog
New in 1.16.5:
	* Bugs fixed
	  - PYTHON_PREFIX and PYTHON_EXEC_PREFIX are now set according to
	    Python's sys.* values only if the new configure option
	    --with-python-sys-prefix is specified. Otherwise, GNU default values
	    are used, as in the past. (The change in 1.16.3 was too incompatible.)
	  - consistently depend on install-libLTLIBRARIES.
	* Distribution
	  - use const for yyerror declaration in bison/yacc tests.
New in 1.16.4:
	* New features added
	  - The PYTHON_PREFIX and PYTHON_EXEC_PREFIX variables are now set from
	    Python's sys.prefix and sys.exec_prefix; use the new configure options
	    --with-python_prefix and --with-python_exec_prefix to specify explicitly.
	  - Common top-level files can be provided as .md; the non-md version is
	    used if both are present:
	      AUTHORS ChangeLog INSTALL NEWS README README-alpha THANKS
	  - CTAGS, ETAGS, SCOPE variables can be set via configure.
	  - Silent make output for custom link commands.
	  - New option "no-dist-built-sources" skips generating $(BUILT_SOURCES)
	    before building the tarball as part of "make dist", that is,
	    omits the dependency of $(distdir): $(BUILT_SOURCES).
	* Bugs fixed
	  - automake output more reproducible.
	  - test-driver less likely to clash with tests writing to the same file.
	  - DejaGnu tests always use the directory name, testsuite/, for
	    compatibility with the newer dejagnu-1.6.3 and with prior versions.
	* Distribution
	  - config.sub and config.guess updates include restoration of `...`
	    for maximum portability.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>