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(vc-rcs-checkin, vc-rcs-checkout): Don't set all properties.
(vc-rcs-register): If there is no RCS subdir, ask the
user whether to create one.
(vc-rcs-state-heuristic): Use
file-ownership-preserved-p.
(vc-rcs-checkout): Remove the error-handling for missing-rcs.
(vc-rcs-state-heuristic): Don't use file-writable-p.
(vc-rcs-print-log): Insert in the current buffer.
(vc-rcs-diff): Insert in the current buffer and remove unused arg
CMP.
(vc-rcs-workfile-unchanged-p): Use vc-do-command
instead of vc-simple-command.
(vc-rcs-fetch-master-state): Removed check for unlocked-changes to
avoid doing a diff when opening a file.
(vc-rcs-state): Added check for unlocked-changes.
(vc-rcs-header): Escape Id.
(vc-rcs-workfile-unchanged-p): Remove optional arg VERSION.
(vc-rcs-state): Call vc-workfile-unchanged-p, not the RCS-specific
version.
(vc-rcs-state-heuristic): Use file-writable-p instead
of comparing userids.
(vc-rcs-fetch-master-state): Handle the case where rcs is missing.
Simplify the logic by eliminating unreachable code.
(vc-rcs-diff): Only pass `2' to vc-do-command if necessary and
just do a recursive call if we need to retry.
(vc-rcs-checkout): Handle the case where rcs is missing by making
the buffer read-write if requested and re-signalling the error.
(vc-rcs-find-most-recent-rev): New function.  The code
derives from the old vc-parse-buffer but uses the revision number
rather than the date (much easier to compare robustly).
(vc-rcs-fetch-master-state): Use `with-temp-buffer'.  Adapt to the
new vc-parse-buffer (and vc-rcs-find-most-recent-rev).  Find the
locking-user more directly.  Check strict locking and set
checkout-model appropriately.
(vc-rcs-parse-locks): Remove.
(vc-rcs-latest-on-branch-p): Use with-temp-buffer and adapt to the
new vc-parse-buffer (and vc-rcs-find-most-recent-rev).
(vc-rcs-system-release): Use with-current-buffer and
vc-parse-buffer.
(vc-rcs-register, vc-rcs-checkout): Use with-current-buffer.
 Merge in code
from vc-rcs-hooks.el.  Don't require 'vc anymore.
(vc-rcs-responsible-p): Use expand-file-name instead of concat and
file-directory-p instead of file-exists-p.
(vc-rcs-exists): Remove.
(vc-rcs-header): New var.
 Update Copyright.
(vc-rcs-rename-file): New function.
(vc-rcs-diff): Remove unused `backend' variable.
(vc-rcs-clear-headers): New function; code moved here
from vc-clear-headers in vc.el.
(tail): Provide vc-rcs and remove vc-rcs-logentry-check.
(vc-rcs-register): Parse command output to find master
file name and workfile version.
(vc-rcs-checkout): Removed call to vc-file-clear-masterprops.
 Require vc and vc-rcs-hooks.
(vc-rcs-trunk-p, vc-rcs-branch-part): Move to vc-rcs-hooks.
(vc-rcs-backend-release-p): Remove (use vc-rcs-release-p).
(vc-release-greater-or-equal-p): Move from vc.
(vc-rcs-trunk-p, vc-rcs-branch-p, vc-rcs-branch-part,
vc-rcs-minor-part, vc-rcs-previous-version): Remove duplicates.
(vc-rcs-checkout): Add a missing `new-version' argument in the
call to vc-rcs-latest-on-branch-p.  Hopefully that was the right
one.
(vc-rcs-steal-lock): Renamed from `vc-rcs-steal'.
 Updated everything to use `vc-checkout-model'.
(vc-rcs-backend-release-p): function added.  other
stuff updated to reference this function instead of the old
`vc-backend-release-p'.
(vc-rcs-logentry-check): Function added.
(vc-rcs-checkin, vc-rcs-previous-version)
(vc-rcs-checkout): Name space cleaned up.  No more revision number
crunching function names that are not prefixed with vc-rcs.
(vc-rcs-checkout-model): Function added.  References to
`vc-checkout-model' replaced.
(vc-rcs-admin): Added the query-only option as
required by the vc.el file.
(vc-rcs-exists): Function added.
(vc-*-checkout):
Use with-temp-file instead of /bin/sh.  Merged from mainline
(vc-rcs-latest-on-branch-p): Moved to vc-rcs-hooks.el.
(vc-rcs-latest-on-branch-p, vc-rcs-trunk-p)
(vc-rcs-branch-p, vc-rcs-branch-part, vc-rcs-minor-part)
(vc-rcs-previous-version): Functions added.
(vc-rcs-diff): Function added.
(vc-rcs-checkout) Bug (typo) found and fixed.
(vc-rcs-register-switches) Variable `vc-rcs-register-switches' added.
 Require vc when compiling.
(vc-rcs-print-log, vc-rcs-assign-name, vc-rcs-merge)
(vc-rcs-check-headers, vc-rcs-steal, vc-rcs-uncheck, vc-rcs-revert)
(vc-rcs-checkin): New functions (code from vc.el).
(vc-rcs-previous-version, vc-rcs-system-release, vc-rcs-checkout):
Doc fix.
(vc-rcs-release): Deleted.  (Duplicated vc-rcs-system-release).
(vc-rcs-trunk-p, vc-rcs-branch-p, vc-rcs-branch-part)
(vc-rcs-minor-part, vc-rcs-previous-version, vc-rcs-release)
(vc-rcs-release-p, vc-rcs-admin, vc-rcs-checkout): New functions
from vc.el.
(vc-rcs-system-release):
Renamed from vc-rcs-backend-release.