config.bat: Copy lib/execinfo.in.h to lib/execinfo.in-h if needed.
msdos/sedlibmk.inp: Sync with changes in lib/Makefile.in.
(HAVE_DECL_ENVIRON, GNULIB_ENVIRON): Edit to require declaration
through lib/unistd.h.
msdos/sed1v2.inp: Sync with changes in src/Makefile.in.
msdos/sed2v2.inp: Sync with changes in src/config.in.
src/lisp.mk: Adjust comments to the fact that term/internal is now
loaded from loadup.el.
src/msdos.c (msdos_abort): Rename from emacs_abort, and make static.
(msdos_fatal_signal): New function.
(XMenuActivate): Adjust the call to kbd_buffer_events_waiting to
its argument list.
src/conf_post.h (_GL_EXECINFO_INLINE) [MSDOS]: Define to "inline"
for GCC versions before 4.
(emacs_raise): Define to call msdos_fatal_signal.
lisp/term/pc-win.el: Don't load term/internal from here.
lisp/loadup.el: Load term/internal from here.