Log Message:
Update to 1.7.5:
Bugs fixed in 1.7.5:
* Update install-sh's license to remove an advertising clause.
  (Debian bug #191717)
* Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
  that caused invalid Makefile.ins to be generated.
* Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
* New FAQ entry: renamed objects.

Bugs fixed in 1.7.4:
* Tweak the TAGS rule to support Exuberant Ctags (in addition to
  the Emacs implementation)
* Fix output of aclocal.m4 dependencies in subdirectories.
* Use `mv -f' instead of `mv' in fastdep rules.
* Upgrade mdate-sh to work on OS/2.
* Don't byte-compile elisp files when ELCFILES is set empty.
  (this documented feature was broken by 1.7.3)
* Diagnose trailing backslashes on last line of Makefile.am.
* Diagnose whitespace following trailing backslashes.
* Multiple tests are now correctly supported in DEJATOOL. (PR/388)
* Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
  Makefiles. (PR/389)
* `make install' will build `BUILT_SOURCES' first.
* Minor documentation fixes.