It is confusingly named and rarely useful. See, for example,
<http://lists.gnu.org/archive/html/emacs-devel/2011-12/msg00089.html>.
* INSTALL.BZR: Don't mention --disable-maintainer-mode.
* Makefile.in (MAINTAINER_MODE_FLAG): Remove; all uses removed.
* configure.in: Remove --disable-maintainer-mode.
(USE_MAINTAINER_MODE, MAINT): Remove.
* admin/make-tarball.txt: Don't worry about maintainer mode.
* etc/NEWS: Mention this.
Putting it in a makefile has some problems with reflection, as
merging from gnulib updates 'configure', which can update the makefile.
Putting it in a standalone script breaks this loop.
* Makefile.in (gnulib_srcdir, $(gnulib_srcdir), DOS_gnulib_comp.m4)
(GNULIB_MODULES, GNULIB_TOOL_FLAGS, sync-from-gnulib):
Remove, moving the actions to the script admin/merge-gnulib.
* admin/merge-gnulib: New script, with actions moved here from
../Makefile.in.
This predates the use of changed.misc etc to serialize the leim build.
The leim Makefile used to set .NO_PARALLEL/.NOTPARALLEL for the same
reason, but has not done so for many years.
This only affects in-tree builds where you have several versions
emacs-24.1.50.1, .2, etc lying around.
* Makefile.in: (install-arch-indep): Delete etc/DOC*.
(install-doc): No more need to delete etc/DOC.
* configure.in (INSTALL_ARCH_INDEP_EXTRA): New output variable.
* Makefile.in (INSTALL_ARCH_INDEP_EXTRA): New, set by configure.
(install-arch-indep): Don't install-etc for self-contained ns builds.
A separate mkdir rule is not needed, since MKDIR_P is thread-safe.
* Makefile.in (install-arch-dep): Ensure bindir exists.
Drop mkdir dependency.
(install-arch-indep): Ensure docdir, infodir, mandir exist.
(install-leim): Drop mkdir dependency.
(mkdir): Remove most directories, now made in relevant rules.
Remember to always call MKDIR_P and INSTALL_DATA from the top-level
directory, for the case in which we are falling back to build-aux/install-sh.
It would make life much easier if autoconf would use an absolute path
in this case.
* configure.in (etcdir): For a self-contained ns build,
set it to the appropriate values.
* Makefile.in (install-arch-dep): No need to move info/ any more.
* configure.in (ns_self_contained): New output variable.
* Makefile.in (ns_self_contained): New, set by configure.
(install-arch-dep): Use $ns_self_contained.
This is rather than installing it in one place then moving it.
* configure.in (archlibdir): Set it for self-contained ns builds.
(libexecdir): Don't expand it now (this is mainly cosmetic).
* Makefile.in (ns_appbindir, ns_appresdir):
Move them before things that may refer to them.
(install-arch-dep): No need to relocate self-contained ns libexec.
* lib-src/Makefile.in (ns_appbindir): New, set by configure.
* configure.in (AC_PROG_MKDIR_P): Call it, to set MKDIR_P.
(MKDEPDIR): Use $MKDIR_P.
* Makefile.in (MKDIR_P): New, set by configure.
(mkdir): Use $MKDIR_P.
* doc/emacs/Makefile.in (MKDIR_P): New, set by configure.
(mkinfodir): Use $MKDIR_P.
* doc/lispintro/Makefile.in (MKDIR_P): New, set by configure.
(mkinfodir): Use $MKDIR_P.
* doc/lispref/Makefile.in (MKDIR_P): New, set by configure.
(mkinfodir): Use $MKDIR_P.
* doc/misc/Makefile.in (MKDIR_P): New, set by configure.
(mkinfodir): Use $MKDIR_P.
* src/Makefile.in (MKDIR_P): New, set by configure.
* src/ns.mk (${ns_appdir}, ${ns_appbindir}Emacs): Use $MKDIR_P.
./lisp/simpl.ele never exists in the _build_ directory,
the Lisp files are always in the _source_ directory.
Even if they were not, it would be wrong to install just
*.el and *.elc, since there are subdirectories in lisp/.
