configure.ac (in the AC_PREREQ command).
automake - at least the version specified near the start of
configure.ac (in the AM_INIT_AUTOMAKE command).
-pkg-config - at least version specified in the PKG_PROG_PKG_CONFIG
- command in configure.ac
makeinfo - not strictly necessary, but highly recommended, so that
you can build the manuals.
If CPU time is not an issue, 'make bootstrap' is the most thorough way
to rebuild, and avoid any spurious problems.
-Users of non-Posix systems (MS-Windows, etc.) should run the
-platform-specific configuration scripts ('nt/configure.bat',
-'config.bat', etc.) before 'make'; the rest of the procedure is
-applicable to those systems as well.
-
Because the repository version of Emacs is a work in progress, it will
sometimes fail to build. Please wait a day or so (and check the
archives of the emacs-buildstatus, emacs-devel, and bug-gnu-emacs