* configure.ac (comma_version, comma_space_version) [mingw32]:
New output variables.
(nt/emacs.rc, nt/emacsclient.rc) [mingw32]: New output files.
* make-dist: Update nt/ for *.rc -> *.rc.in changes.
* nt/emacs.rc.in, nt/emacsclient.rc.in: Rename from nt/emacs.rc, emacsclient.rc.
Let configure generate the real files, and set the version numbers.
* lib-src/Makefile.in (emacsclient.res): Update deps for nt/emacsclient.rc
now being in the build directory, not the source directory.
* nt/Makefile.in (distclean): Delete *.rc.
(emacs.res): Update deps for nt/emacsclient.rc now being in the
build directory, not the source directory.
* admin/admin.el (set-version): No more need to update nt/*.rc.
* admin/authors.el (authors-renamed-files-alist): Add .rc.in files.
This is in preparation for generating the former automatically
from the latter.
* admin/notes/bugtracker, admin/notes/copyright, admin/notes/newfile:
ChangeLog -> change log
* admin/notes/changelogs: Remove, merging old contents to ...
* admin/notes/repo: ... here.
* doc/emacs/maintaining.texi (Change Log): Mention that ChangeLog files may
be copied to or from a version control system.
* doc/emacs/trouble.texi (Sending Patches): Point to the commit messages.
* doc/lispref/intro.texi (Acknowledgments): ChangeLog file -> change log entries.
* doc/lispref/tips.texi (Library Headers): Emacs uses a version control system.
* etc/CONTRIBUTE: Give advice about git commit messages and how
to generate proposed patches containing them.
... for detecting MinGW-w64. _W64 is not specific of MinGW-w64, it is
defined for compatibility with MS VC++.
* nt/inc/ms-w32.h: Define MINGW_W64.
* admin/CPP-DEFINES: Mention MINGW_W64.
* nt/addpm.c: Use it.
* nt/addsection.c: Use it.
* nt/preprep.c: Use it.
* src/w32.c: Use MINGW_W64 instead of _W64
* src/w32term.c: Likewise.
All bzr revision IDS, and all CVS revision IDs for which a commit
could be identified, were changed to time-date!committer version
stamps. All .cvsignore files in the history became .gitignore files.
Fixes-bug annotations from bzr were copied into the corresponding
commit comments.
(The first .cvsignore commit was 1999-09-30T14:07:54Z!fx@gnu.org>.
The last CVS commit was <2009-12-27T08:11:12Z!cyd@stupidchicken.com>)
Committer/author email addresses are generally correct for the
transition day, not necessarily when the commit was originally made.
All bzr revision IDS, and all CVS revision IDs for which a commit
could be identified, were changed to time-date!committer version
stamps. All .cvsignore files in the history became .gitignore files.
Fixes-bug annotations from bzr were copied into the corresponding
commit comments.
(The first .cvsignore commit was 1999-09-30T14:07:54Z!fx@gnu.org>.
The last CVS commit was <2009-12-27T08:11:12Z!cyd@stupidchicken.com>)
Committer/author email addresses are generally correct for the
transition day, not necessarily when the commit was originally made.
* configure.ac (doc/man/emacs.1): Generate it.
* Makefile.in (top_bootclean): Remove doc/man/emacs.1.
* make-dist: Do not distribute doc/man/emacs.1.
* admin/admin.el (set-version): No need to update doc/man/emacs.1.
* doc/man/emacs.1.in: Rename from emacs.1.
* .bzrignore: Add doc/man/emacs.1.
* grammars/c.by (template-type): Add :template-specifier and
:typevar to capture extra details about the template.
(opt-post-fcn-modifiers): Splice in the found symbol into the
return value correctly.
(QUESTION): New punctuation.
(expression): Add ternary conditional support.
* grammars/scheme.by (MODULE): New token.
(scheme): Handle expanding the MODULE tag.
(scheme-list): Remove closeparen required match.
(scheme-in-list): Remove extraneous matches for DEFINE. Add
support for MODULE Simplify matching for code & make work.
(name-args, name-arg-list, name-arg-expand): Make it work.
* semantic.el (semantic-mode): Add/remove 3
completion-at-point-functions.
(semantic-completion-at-point-function): Removed.
(semantic-analyze-completion-at-point-function)
(semantic-analyze-notc-completion-at-point-function)
(semantic-analyze-nolongprefix-completion-at-point-function): New
completion at point functions.
* semantic/doc.el (semantic-doc-snarf-comment-for-tag): Fix case
when comment-end is empty string.
* semantic/debug.el
(semantic-debug-parser-debugger-source): New buffer local
variable.
(semantic-debug-interface): Add 'nil' initform to overlays.
(semantic-debug-mode): Remove read-only tags from buffers on exit.
(semantic-debug): Add autoload cookie. Force the language
specific debugger to load.
* semantic/db.el (generic::semanticdb-full-filename): New generic
method to allow this method to be used on buffer names via an
associated database.
* semantic/symref.el
(semantic-symref-cleanup-recent-buffers-fcn): When cleaning up
buffers, don't clean up buffers that are being used (i.e., in a
window) when the hook fires.
(semantic-symref-recently-opened-buffers): New tracking variable.
(semantic-symref-cleanup-recent-buffers-fcn): New hook fcn.
(semantic-symref-result-get-tags): Move logic into
`semantic-symref-hit-to-tag-via-buffer', and cleanup buffers via
the symref cleanup function in post-command-hook.
(semantic-symref-hit-to-tag-via-buffer): Logic that used to be
from above.
(semantic-symref-hit-to-tag-via-db): New.
* semantic/analyze.el:
(semantic-analyze-find-tag-sequence-default): If first entry in
sequence is the only one, apply tagclass filter.
(semantic-analyze-princ-sequence): Show slot even if empty.
(semantic-analyze-find-tag-sequence)
(semantic-analyze-find-tag-sequence-default): Add flags argument.
Add support for forcing the final entry of the sequence to be of
class variable.
(semantic-analyze-find-tag): Fix bug where input class filter was
ignored if there was a typecache match.
(semantic-analyze-current-context-default): For assignments, the
assignee now must be of class variable.
* semantic/analyze/complete.el
(semantic-analyze-possible-completions-default): Add
'no-longprefix' flag. When used, the prefix and prefixtypes are
shortened to just the last symbol.
* semantic/bovine/c.el (semantic-c-do-lex-if): Catch errors from
'hideif', and push to the parser warning stack.
(semantic-lex-cpp-define): When a comment is at the end of a
macro, do not subtract an extra 1 from the found position. Fixes
bug with: #define foo (a)/**/ adding an extra ')' to the stream.
* semantic/bovine/scm.el (semantic-lex-scheme-symbol): Allow
symbols to be one char long.
* semantic/bovine/grammar.el
(bovine-grammar-calculate-source-on-path): New.
(bovine-grammar-setupcode-builder): Use it.
* ede.el (ede/detect): New require.
(ede-version): Bump version
(ede-initialize-state-current-buffer): Use new
`ede-detect-directory-for-project' to detect projects first
instead of depending on currente dir only.
(ede-delete-project-from-global-list): New.
(ede-flush-deleted-projects): Use above.
(ede-check-project-query-fcn): New variable
(ede-check-project-directory): Use above when querying the user.
Added to support unit testing of this security measure.
(ede-initialize-state-current-buffer): Use
`ede-directory-project-cons' instead of the -detect- fcn to take
advantage of the cache. Pass found project into
`ede-load-project-file'.
(ede-load-project-file): Add new input DETECTIN.
(ede-rescan-toplevel): Get the proj root a better way.
(ede-load-project-file): Return the loaded object. When asking
for existing project, ask for an exact match.
(ede-initialize-state-current-buffer): Simplify some conditional
logic.
(ede-load-project-file): Simplify conditional logic.
(ede-global-list-sanity-check): New Testing fcn.
(ede-parent-project): Replace old code with call to faster
`ede-find-subproject-for-directory'.
(ede-load-project-file): Use
`ede-directory-get-toplevel-open-project' instead of above
deleted. Rename "pfc" to "autoloader". Use
`ede-directory-project-cons' to detect a project. Delete no
project found case where we search up the tree.
* ede/auto.el (ede-project-autoload): Fix doc typo. Add
`:root-only' slot.
(ede-auto-load-project): Doc update: warn to not use.
(ede-dir-to-projectfile): Deleted.
(ede-project-autoload-dirmatch): Add subdir-only slot. Make
configdatastash unbound by default.
(ede-do-dirmatch): If subdir-only is true, then don't allow exact
matches. Account for configdatastash as unbound. Assume value of
nil means no tool installed. Make sure loaded path matches from
beginning. Stash the regexp, not the raw string.
(ede-project-class-files): Note that makefile and automake are not
root only.
(ede-auto-detect-in-dir): New (for use with `ede/detect.el').
(ede-project-dirmatch-p): Deleted.
(ede-project-root-directory): Remove body, return nil.
(ede-project-autoload): :proj-root-dirmatch can be null & doc fix.
(ede-auto-detect-in-dir): If there is no :proj-file, check for a
dirmatch.
* ede/generic.el (ede/config): Replace require of ede.
(ede-generic-new-autoloader): Generic projects are now safe by
default. Note this is NOT a root only project.
(project-rescan, ede-project-root, ede-generic-target-java)
(ede-java-classpath, ede-find-subproject-for-directory): New.
(ede-enable-generic-projects): Add new autoloaders for git, bzr,
hg, sv, CVS.
(ede-generic-vc-project)
(ede-generic-vc-project::ede-generic-setup-configuration): New.
(ede-generic-config): Remove slots: c-include-path,
c-preprocessor-table, c-preprocessor-files, classpath,
build-command, debug-command, run command. Inherit from
ede-extra-config-build, ede-extra-config-program. Make
run-command :value match :custom so only strings are accepted.
Add some more :group slot specifiers.
(ede-generic-project): Add mixins `ede-project-with-config-c' and
`ede-project-with-config-java'. Inherit from
`ede-project-with-config-build',
`ede-project-with-config-program'. Subclass
`ede-project-with-config'. Remove duplication from new baseclass.
(ede-generic-target): Inherit from `ede-target-with-config-build',
`ede-target-with-config-program'. Subclass `ede-target-with-config'.
(ede-generic-target-c-cpp): Add mixin `ede-target-with-config-c'.
(ede-generic-target-java): Add mixin `ede-target-with-config-java'.
(ede-preprocessor-map, ede-system-include-path)
(edejava-classpath): Deleted, moved to config.el.
(project-compile-project, project-compile-target)
(project-debug-target, project-run-target): Deleted.
(ede-generic-get-configuration, ede-generic-setup-configuration)
(ede-commit-project, project-rescan)
(ede-generic-project::ede-customize)
(ede-generic-target::ede-customize)
(ede-generic-config::eieio-done-customizing)
(ede-generic-config::ede-commit): Deleted. Subsumed by new
baseclass.
(ede-preprocessor-map, ede-system-include-path)
(project-debug-target, project-run-target): Call new
`ede-config-get-configuration' instead of old version.
(ede-generic-load): Do not add to global list here.
* ede/files.el (ede-find-project-root)
(ede-files-find-existing)
(ede-directory-get-toplevel-open-project-new): Deleted.
(ede-project-root-directory): Use `ede-project-root' first.
(ede-project-directory-remove-hash)
(ede--directory-project-from-hash)
(ede--directory-project-add-description-to-hash): Rename to make
internal symbols (via --). Expand input dir first.
(ede-directory-project-p): Doc fix (note obsoleted.)
(ede-toplevel-project-or-nil): Alias to `ede-toplevel-project'.
(ede-toplevel-project): Doc Fix. Delete commented out old code.
Simplify returning result from ede-detect-directory-for-project.
(ede-directory-get-open-project): Support when
inodes are disabled. If disabled to str compare on root project.
(ede-directory-get-toplevel-open-project): Enabled nested
projects. When doing directory name matching, save the 'short'
version of an answer (non-exact match) and eventually select the
shortest answer at the end. Expand the filename of tested
projects. Better support for when inodes are disabled. Add
'exact' option so that it will return a project that is an exact
match.
(ede-find-subproject-for-directory): Small optimization to run
`file-truename' less often.
(ede-directory-project-p): Move content, then use
`ede-directory-project-cons'. Use
`ede-detect-directory-for-project', replacing old detection loop.
(ede-directory-project-cons): New, from above.
(ede-toplevel-project): Toss old scanning code. Use
`ede-detect-directory-for-project' instead.
(ede-directory-get-toplevel-open-project-new): New.
* ede/linux.el (ede-linux-project-root): Deleted.
(ede-project-autoload): Remove dirmatch entry - it is no longer
needed.
* lisp/cedet/ede/proj.el (project-rescan): Replace direct
manipulation of `ede-projects' with equivalent and better
functions.
(ede-proj-load): Replace call to test if dir has project to
explicity ask filesystem if Project.ede is there.
* ede/config.el:
* ede/detect.el: New files.
* ede/project-am.el (project-run-target): Add "./" to program to
run for systems where '.' isn't in PATH.
(project-am-load): Remove old code regarding `ede-constructing'.
Just read in the makefiles.
* ede/linux.el (ede-linux-load): Do not add to global list here.
Don't check for existing anymore.
(project-rescan): New.
(ede-linux-project-list, ede-linux-file-existing): Deleted.
(ede-linux-project-root): Delete body. Need symbol for autoloads
for now.
(ede-linux-project): No longer instance tracker.
(ede-project-autoload): Don't provide :proj-root
* ede/emacs.el (ede-emacs-load): Do not add project to global list
here. Don't look for existing first.
(ede-project-autoload): Remove dirmatch entry - it is no longer
needed. Don't provide proj-root anymore.
(ede-emacs-project-list, ede-emacs-file-existing): Delete.
(ede-emacs-project-root): Remove body (need symbol for loaddefs
still).
(ede-emacs-project): Do not instance track anymore.
* ede/cpp-root.el (initialize-instance): Remove commented code.
Add note about why we are adding the project to the master list.
Make sure if we are replacing a prev version, remove from global
list.
(ede-cpp-root-file-existing)
(ede-cpp-root-project-file-for-dir)
(ede-cpp-root-count, ede-cpp-root-project-root, ede-cpp-root-load)
(ede-project-autoload cpp-root): Deleted.
(ede-project-root-directory): Return :directory instead of
calculating from :file.
(project-rescan): New.
* ede/base.el (ede-toplevel): Only use buffer cached value if
subproj not passed in.
* srecode/java.el (srecode-semantic-handle-:java): Fix case when
an EDE project didn't support java paths.
* lisp/cedet/ede/proj-elisp.el
(ede-proj-target-elisp::ede-proj-tweak-autoconf): Kill buffer
after saving modified elisp-comp script, as to avoid "file has
changed on disk; really edit the buffer" questions when script
gets rewritten.
* emacs-lisp/eieio-custom.el (eieio-customize-object): Set
eieio-cog (current group) to g, which is an improved form of input
group.
* srecode/doc-cpp.srt (mode): Set to c mode so this works with
both C and C++.
* admin/notes/repo: Avoid "DVCS" acronym without first explaining it.
Mention using the first line of a ChangeLog as the topic line, and
that commit messages should use UTF-8.
* lisp/mouse.el (mouse-drag-line): Fix misspelling of "right-fringe".
src/Makefile.in (repo-update): Fix a typo and slightly reword
commentary.
admin/notes/repo (Notes): Reword the stylistic guidance for commit log
messages so that they are in line with Emacs development practices
and style guidance.
admin/notes/bzr: Renamed to notes/repo, reorganixed to separate
VCS-dependent from VCS-independent stuff. Added guidance about
commit-comment format under DVCSes.
admin/notes/BRANCH: Merged into notes/repo.
lisp/version.el: Fix some fallback values to conform to the actual
release number.
src/bidi.c (bidi_ignore_explicit_marks_for_paragraph_level): Remove
variable.
(bidi_get_type): Return the isolate initiators and terminator
types.
(bidi_isolate_fmt_char, bidi_paired_bracket_type)
(bidi_fetch_char_skip_isolates, find_first_strong_char)
(bidi_find_bracket_pairs, bidi_resolve_brackets): New functions.
(bidi_set_sos_type): Renamed from bidi_set_sor_type and updated
for the new features.
(bidi_push_embedding_level, bidi_pop_embedding_level): Update to
push and pop correctly for isolates.
(bidi_remember_char): Modified to accept an additional argument
and record the bidi type according to its value.
(bidi_cache_iterator_state): Accept an additional argument to only
update an existing state. Handle the new members of struct bidi_it.
(bidi_cache_find): Arguments changed: no lnger accepts a level,
instead accepts a flag telling it whether it is okay to return
unresolved neutrals.
(bidi_initialize): Initiate and staticpro the bracket-type uniprop
table. Initialize new isolate-related members.
(bidi_paragraph_init): Some code factored out into
find_first_strong_char.
(bidi_resolve_explicit_1): Function deleted, its code incorporated
into bidi_resolve_explicit.
(bidi_resolve_explicit): Support the isolate initiators and
terminator. Fix handling of embeddings and overrides according to
new UBA requirements. Record information about previously seen
characters here (moved from bidi_level_of_next_char).
(bidi_resolve_weak): Adapt to changes in struct members.
(FLAG_EMBEDDING_INSIDE, FLAG_OPPOSITE_INSIDE, MAX_BPA_STACK)
(STORE_BRACKET_CHARPOS, PUSH_BPA_STACK): New macros.
(bidi_resolve_neutral): Call bidi_resolve_brackets to handle the
paired bracket resolution. Handle isolate initiators and
terminator.
(bidi_type_of_next_char): Remove unneeded code for BN limit.
(bidi_level_of_next_char): Move the code that records information
about previous characters to bidi_resolve_explicit. Fix logic of
resolving neutrals and make sure their cache entries are updated.
Remove now unneeded special handling of PDF level.
src/dispextern.h (struct glyph): Enlarge the width of resolved_level.
(BIDI_MAXDEPTH): New macro, renamed from BIDI_MAXLEVEL and
enlarged per Unicode 6.3.
(enum bidi_bracket_type_t): New data type.
(struct bidi_saved_info): Leave only 2 type members out of 4.
Remove bytepos.
(struct bidi_stack): Add members necessary to support isolating
sequences.
(struct bidi_it): Add new members necessary to support isolating
sequences and bracket pair resolution.
src/xdisp.c (Fbidi_resolved_levels): New function.
(syms_of_xdisp): Defsubr it.
(append_glyph, append_composite_glyph, produce_image_glyph)
(append_stretch_glyph, append_glyphless_glyph): Convert aborts to
assertions.
(syms_of_xdisp) <inhibit-bidi-mirroring>: New variable.
src/term.c (append_glyph, append_composite_glyph)
(append_glyphless_glyph): Convert aborts to assertions.
src/.gdbinit (pgx): Display the character codepoint, resolved level,
and bidi type also for glyphless glyphs.
lisp/simple.el (what-cursor-position): Update to support the new bidi
characters.
lisp/descr-text.el (describe-char): Update to support the new bidi
characters.
admin/unidata/unidata-gen.el (unidata-prop-alist): New properties
'paired-bracket' and 'bracket-type', in support of the UBA 6.3.
(unidata-gen-table): Support PROP-IDX being a function.
(unidata-describe-bidi-bracket-type, unidata-gen-brackets-list)
(unidata-gen-bracket-type-list): New functions.
(unidata-check): Support checking the 'bracket-type' attribute.
(unidata-gen-files): Don't create backups for uni-*.el files.
admin/unidata/Makefile.in (${unidir}/charprop.el): Depend on
BidiMirroring.txt and BidiBrackets.txt.
admin/unidata/BidiBrackets.txt: New file, from Unicode.
etc/NEWS: Mention the UBA implementation update.
etc/HELLO: Remove now unneeded directional control characters.
doc/lispref/nonascii.texi (Character Properties): Document the new
properties 'bracket-type' and 'paired-bracket'.
doc/lisprefdisplay.texi (Bidirectional Display): Update the version of the
UBA to which we are conforming.
test/BidiCharacterTest.txt: New file, from Unicode.
test/biditest.el: New file.
Do all putenv calls before Emacs creates any threads.
Use a safer way to modify the TZ environment variable in the
presence of multiple threads. For further thread-safety,
prefer localtime_r and gmtime_r to localtime and gmtime,
and prefer struct tm's tm_gmtoff (if available) to calling
both localtime_r and gmtime_r.
* configure.ac (LOCALTIME_CACHE): Remove.
We needn't worry about SunOS 4 any more; Sun dropped support in 2003.
All uses of LOCALTIME_CACHE removed. This simplifies the fix.
(tzalloc): Add check for this function.
* admin/merge-gnulib (GNULIB_MODULES): Add time_r, since Emacs now
calls localtime_r and gmtime_r directly.
* src/dbusbind.c (Fdbus__init_bus): Move xputenv call from here ...
(init_dbusbind): ... to this new function.
* src/emacs.c (main) [HAVE_DBUS]: Call it before creating threads.
* src/xterm.c (x_term_init): Move xputenv call from here ...
(init_xterm): ... to this new function.
* src/emacs.c (main) [USE_GTK]: Call it before creating threads.
* src/editfns.c (HAVE_TM_GMTOFF): Default to false.
(dump_tz_string): New constant.
(init_editfns): Use it. This centralizes the dump_tz stuff.
Call set_time_zone_rule here, so that its xputenv is done
before Emacs goes multithreaded.
(mktime_z) [!HAVE_TZALLOC]: New function, which is typically
thread-safe enough for Emacs.
(format_time_string, Fdecode_time, Fcurrent_time_string)
(Fcurrent_time_zone):
Prefer localtime_r and gmtime_r, which are more thread-safe, to
localtime and gmtime. Remove now-unnecessary calls to block_input.
(tm_gmtoff): New static function.
(Fdecode_time, Fcurrent_time_zone): Use it.
(Fencode_time): Use mktime_z, for better thread-safety.
(set_time_zone_rule): Now static. Rewrite to be mostly thread-safe,
i.e., not quite thread-safe but good enough for Emacs typical usage.
Do not reclaim storage that is in the environment; let it leak.
Always call tzset, since localtime_r does not.
* src/emacs.c (dump_tz, Fdump_emacs) [HAVE_TZSET]: Remove dump_tz stuff.
This is now done in init_editfns.
* src/systime.h (mktime_z, timezone_t, tzalloc, tzfree) [!HAVE_TZALLOC]:
New macros and declarations, for platforms lacking tzalloc & friends.
Fixes: debbugs:8705
(all): Use unifiles rather than charprop.el.
(FORCE): New variable and phony rule.
(${unidir}/charprop.el): Respect FORCE.
(unifiles): New rule.
* src/Makefile.in ($(srcdir)/macuvs.h)
($(lispsource)/international/charprop.el): Add explicit FORCE.
Fixes: debbugs:18489
admin/unidata/unidata-gen.el (unidata-check): Bring this function up
to date with the currently supported methods of generating Unicode
property tables. Add a comment with a description how to invoke
the check. Update the copyright years in the reference to the
Unicode data files we use.
It's not safe to call qsort or qsort_r, since they have undefined
behavior if the user-specified predicate is not a total order.
Also, watch out for garbage-collection while sorting vectors.
* admin/merge-gnulib (GNULIB_MODULES): Add vla.
* configure.ac (qsort_r): Remove, as we no longer use qsort-like
functions.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/vla.h, m4/vararrays.m4: New files, copied from gnulib.
* lib/stdlib.in.h, m4/stdlib_h.m4: Sync from gnulib, incorporating:
2014-08-29 qsort_r: new module, for GNU-style qsort_r
The previous two files' changes are boilerplate generated by
admin/merge-gnulib, and should not affect Emacs.
* src/fns.c: Include <vla.h>.
(sort_vector_predicate) [!HAVE_QSORT_R]: Remove.
(sort_vector_compare): Remove, replacing with ....
(inorder, merge_vectors, sort_vector_inplace, sort_vector_copy):
... these new functions.
(sort_vector): Rewrite to use the new functions.
GCPRO locals, since the predicate can invoke the GC.
Since it's in-place return void; caller changed.
(merge): Use 'inorder', for clarity.
Fixes: debbugs:18361
* notes/exit-value: Remove specific discussion of VMS.
* doc/emacs/programs.texi (Program Modes): Don't advertise VMS DCL support
any more.
* doc/misc/ediff.texi (Merging and diff3): Don't mention lack of support
for VMS diff, we no longer support VMS.
* lisp/progmodes/ada-mode.el:
* lisp/net/tramp.el (tramp-handle-file-symlink-p):
* lisp/net/tramp-ftp.el (tramp-ftp-file-name-handler): Remove a comment
about VMS, which we no longer support.
* lisp/progmodes/ada-xref.el (ada-xref-current): Remove mention of VMS,
and fix a FIXME, using convert-standard-filename in place of
removed ada-convert-file-name.
* lisp/url/url-handlers.el: Remove a comment about VMS, which we no longer
support.
