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compiler warnings.

(tildify) <defgroup>: Add :version.

(frame-background-mode): Use mapc.
(region) <defcustom>: Add :version.

by Fmemq in a condition.

* vc-rcs.el (vc-rcs-register):
* vc-cvs.el (vc-cvs-register): Don't clear file's properties.
* vc.el (vc-register): Clear file's properties.

read-only in a dumped Emacs.
(mmap_fd_1): New variable.
(mmap_set_vars): Remove local `fd'.  Save mmap_fd in mmap_fd_1,
restore it from there.
(r_alloc, r_re_alloc, r_alloc_free): Call r_alloc_init
unconditionally so that mmap_fd can be initialized there.
(r_alloc_init_fd): Open-coded in r_alloc_init; function removed.
(r_alloc_init) [REL_ALLOC_MMAP && !MAP_ANON]: Open /dev/zero.
(r_alloc_init) [REL_ALLOC_MMAP && MAP_ANON]: Set mmap_fd to -1.

autoconf.

(display_line, move_it_in_display_line_to): Avoid compiler
warnings.

ATTRS is non-nil.

(MAP_ANON) [REL_ALLOC_MMAP]: Ensure it's defined.
[!MAP_ANON]: Include fcntl.h.
(mmap_fd) [REL_ALLOC_MMAP]: New variable.
(r_alloc, r_re_alloc, r_alloc_free)
(mmap_enlarge, mmap_set_vars): Use it.
(r_alloc_init_fd): New function.
(__morecore) [SYSTEM_MALLOC]: Don't declare.
(r_alloc_init): Call r_alloc_init_fd.  Conditionalize stuff on
malloc type.

inheritance.

Remove vm-limit.o.

unchanged rows at the top, handle the case that we can't find it.

of bounds more carefully.

string and PATTERN.

(Finternal_merge_in_global_face): Restore old global/local
attribute override order.  Use inline loop instead of calling
default_face_vector.

chinese-py, and chinese-tonepy input methods.