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-revision 248 by ph10,
Mon Sep 17 10:09:22 2007 UTC
+revision 423 by ph10,
Sat Aug 15 18:17:31 2009 UTC
 Line 1
  ChangeLog for PCRE
  ------------------
- Version 7.4 10-Sep-07
+ Version 8.00 ??-???-??
+ ----------------------
+.  The table for translating pcre_compile() error codes into POSIX error codes
+     was out-of-date, and there was no check on the pcre_compile() error code
+     being within the table. This could lead to an OK return being given in
+     error.
+.  Changed the call to open a subject file in pcregrep from fopen(pathname,
+     "r") to fopen(pathname, "rb"), which fixed a problem with some of the tests
+     in a Windows environment.
+.  The pcregrep --count option prints the count for each file even when it is
+     zero, as does GNU grep. However, pcregrep was also printing all files when
+     --files-with-matches was added. Now, when both options are given, it prints
+     counts only for those files that have at least one match. (GNU grep just
+     prints the file name in this circumstance, but including the count seems
+     more useful - otherwise, why use --count?) Also ensured that the
+     combination -clh just lists non-zero counts, with no names.
+.  The long form of the pcregrep -F option was incorrectly implemented as
+     --fixed_strings instead of --fixed-strings. This is an incompatible change,
+     but it seems right to fix it, and I didn't think it was worth preserving
+     the old behaviour.
+.  The command line items --regex=pattern and --regexp=pattern were not
+     recognized by pcregrep, which required --regex pattern or --regexp pattern
+     (with a space rather than an '='). The man page documented the '=' forms,
+     which are compatible with GNU grep; these now work.
+.  No libpcreposix.pc file was created for pkg-config; there was just
+     libpcre.pc and libpcrecpp.pc. The omission has been rectified.
+ Version 7.9 11-Apr-09
+ ---------------------
+.  When building with support for bzlib/zlib (pcregrep) and/or readline
+     (pcretest), all targets were linked against these libraries. This included
+     libpcre, libpcreposix, and libpcrecpp, even though they do not use these
+     libraries. This caused unwanted dependencies to be created. This problem
+     has been fixed, and now only pcregrep is linked with bzlib/zlib and only
+     pcretest is linked with readline.
+.  The "typedef int BOOL" in pcre_internal.h that was included inside the
+     "#ifndef FALSE" condition by an earlier change (probably 7.8/18) has been
+     moved outside it again, because FALSE and TRUE are already defined in AIX,
+     but BOOL is not.
+.  The pcre_config() function was treating the PCRE_MATCH_LIMIT and
+     PCRE_MATCH_LIMIT_RECURSION values as ints, when they should be long ints.
+.  The pcregrep documentation said spaces were inserted as well as colons (or
+     hyphens) following file names and line numbers when outputting matching
+     lines. This is not true; no spaces are inserted. I have also clarified the
+     wording for the --colour (or --color) option.
+.  In pcregrep, when --colour was used with -o, the list of matching strings
+     was not coloured; this is different to GNU grep, so I have changed it to be
+     the same.
+.  When --colo(u)r was used in pcregrep, only the first matching substring in
+     each matching line was coloured. Now it goes on to look for further matches
+     of any of the test patterns, which is the same behaviour as GNU grep.
+.  A pattern that could match an empty string could cause pcregrep to loop; it
+     doesn't make sense to accept an empty string match in pcregrep, so I have
+     locked it out (using PCRE's PCRE_NOTEMPTY option). By experiment, this
+     seems to be how GNU grep behaves.
+.  The pattern (?(?=.*b)b|^) was incorrectly compiled as "match must be at
+     start or after a newline", because the conditional assertion was not being
+     correctly handled. The rule now is that both the assertion and what follows
+     in the first alternative must satisfy the test.
+.  If auto-callout was enabled in a pattern with a conditional group whose
+     condition was an assertion, PCRE could crash during matching, both with
+     pcre_exec() and pcre_dfa_exec().
+. The PCRE_DOLLAR_ENDONLY option was not working when pcre_dfa_exec() was
+     used for matching.
+. Unicode property support in character classes was not working for
+     characters (bytes) greater than 127 when not in UTF-8 mode.
+. Added the -M command line option to pcretest.
+. Added the non-standard REG_NOTEMPTY option to the POSIX interface.
+. Added the PCRE_NO_START_OPTIMIZE match-time option.
+. Added comments and documentation about mis-use of no_arg in the C++
+     wrapper.
+. Implemented support for UTF-8 encoding in EBCDIC environments, a patch
+     from Martin Jerabek that uses macro names for all relevant character and
+     string constants.
+. Added to pcre_internal.h two configuration checks: (a) If both EBCDIC and
+     SUPPORT_UTF8 are set, give an error; (b) If SUPPORT_UCP is set without
+     SUPPORT_UTF8, define SUPPORT_UTF8. The "configure" script handles both of
+     these, but not everybody uses configure.
+. A conditional group that had only one branch was not being correctly
+     recognized as an item that could match an empty string. This meant that an
+     enclosing group might also not be so recognized, causing infinite looping
+     (and probably a segfault) for patterns such as ^"((?(?=[a])[^"])|b)*"$
+     with the subject "ab", where knowledge that the repeated group can match
+     nothing is needed in order to break the loop.
+. If a pattern that was compiled with callouts was matched using pcre_dfa_
+     exec(), but without supplying a callout function, matching went wrong.
+. If PCRE_ERROR_MATCHLIMIT occurred during a recursion, there was a memory
+     leak if the size of the offset vector was greater than 30. When the vector
+     is smaller, the saved offsets during recursion go onto a local stack
+     vector, but for larger vectors malloc() is used. It was failing to free
+     when the recursion yielded PCRE_ERROR_MATCH_LIMIT (or any other "abnormal"
+     error, in fact).
+. There was a missing #ifdef SUPPORT_UTF8 round one of the variables in the
+     heapframe that is used only when UTF-8 support is enabled. This caused no
+     problem, but was untidy.
+. Steven Van Ingelgem's patch to CMakeLists.txt to change the name
+     CMAKE_BINARY_DIR to PROJECT_BINARY_DIR so that it works when PCRE is
+     included within another project.
+. Steven Van Ingelgem's patches to add more options to the CMake support,
+     slightly modified by me:
+       (a) PCRE_BUILD_TESTS can be set OFF not to build the tests, including
+           not building pcregrep.
+       (b) PCRE_BUILD_PCREGREP can be see OFF not to build pcregrep, but only
+           if PCRE_BUILD_TESTS is also set OFF, because the tests use pcregrep.
+. Forward references, both numeric and by name, in patterns that made use of
+     duplicate group numbers, could behave incorrectly or give incorrect errors,
+     because when scanning forward to find the reference group, PCRE was not
+     taking into account the duplicate group numbers. A pattern such as
+     ^X(?3)(a)(?|(b)|(q))(Y) is an example.
+. Changed a few more instances of "const unsigned char *" to USPTR, making
+     the feature of a custom pointer more persuasive (as requested by a user).
+. Wrapped the definitions of fileno and isatty for Windows, which appear in
+     pcretest.c, inside #ifndefs, because it seems they are sometimes already
+     pre-defined.
+. Added support for (*UTF8) at the start of a pattern.
+. Arrange for flags added by the "release type" setting in CMake to be shown
+     in the configuration summary.
+ Version 7.8 05-Sep-08
+ ---------------------
+.  Replaced UCP searching code with optimized version as implemented for Ad
+     Muncher (http://www.admuncher.com/) by Peter Kankowski. This uses a two-
+     stage table and inline lookup instead of a function, giving speed ups of 2
+     to 5 times on some simple patterns that I tested. Permission was given to
+     distribute the MultiStage2.py script that generates the tables (it's not in
+     the tarball, but is in the Subversion repository).
+.  Updated the Unicode datatables to Unicode 5.1.0. This adds yet more
+     scripts.
+.  Change 12 for 7.7 introduced a bug in pcre_study() when a pattern contained
+     a group with a zero qualifier. The result of the study could be incorrect,
+     or the function might crash, depending on the pattern.
+.  Caseless matching was not working for non-ASCII characters in back
+     references. For example, /(\x{de})\1/8i was not matching \x{de}\x{fe}.
+     It now works when Unicode Property Support is available.
+.  In pcretest, an escape such as \x{de} in the data was always generating
+     a UTF-8 string, even in non-UTF-8 mode. Now it generates a single byte in
+     non-UTF-8 mode. If the value is greater than 255, it gives a warning about
+     truncation.
+.  Minor bugfix in pcrecpp.cc (change "" == ... to NULL == ...).
+.  Added two (int) casts to pcregrep when printing the difference of two
+     pointers, in case they are 64-bit values.
+.  Added comments about Mac OS X stack usage to the pcrestack man page and to
+     test 2 if it fails.
+.  Added PCRE_CALL_CONVENTION just before the names of all exported functions,
+     and a #define of that name to empty if it is not externally set. This is to
+     allow users of MSVC to set it if necessary.
+. The PCRE_EXP_DEFN macro which precedes exported functions was missing from
+     the convenience functions in the pcre_get.c source file.
+. An option change at the start of a pattern that had top-level alternatives
+     could cause overwriting and/or a crash. This command provoked a crash in
+     some environments:
+       printf "/(?i)[\xc3\xa9\xc3\xbd]|[\xc3\xa9\xc3\xbdA]/8\n" | pcretest
+     This potential security problem was recorded as CVE-2008-2371.
+. For a pattern where the match had to start at the beginning or immediately
+     after a newline (e.g /.*anything/ without the DOTALL flag), pcre_exec() and
+     pcre_dfa_exec() could read past the end of the passed subject if there was
+     no match. To help with detecting such bugs (e.g. with valgrind), I modified
+     pcretest so that it places the subject at the end of its malloc-ed buffer.
+. The change to pcretest in 12 above threw up a couple more cases when pcre_
+     exec() might read past the end of the data buffer in UTF-8 mode.
+. A similar bug to 7.3/2 existed when the PCRE_FIRSTLINE option was set and
+     the data contained the byte 0x85 as part of a UTF-8 character within its
+     first line. This applied both to normal and DFA matching.
+. Lazy qualifiers were not working in some cases in UTF-8 mode. For example,
+     /^[^d]*?$/8 failed to match "abc".
+. Added a missing copyright notice to pcrecpp_internal.h.
+. Make it more clear in the documentation that values returned from
+     pcre_exec() in ovector are byte offsets, not character counts.
+. Tidied a few places to stop certain compilers from issuing warnings.
+. Updated the Virtual Pascal + BCC files to compile the latest v7.7, as
+     supplied by Stefan Weber. I made a further small update for 7.8 because
+     there is a change of source arrangements: the pcre_searchfuncs.c module is
+     replaced by pcre_ucd.c.
+ Version 7.7 07-May-08
+ ---------------------
+.  Applied Craig's patch to sort out a long long problem: "If we can't convert
+     a string to a long long, pretend we don't even have a long long." This is
+     done by checking for the strtoq, strtoll, and _strtoi64 functions.
+.  Applied Craig's patch to pcrecpp.cc to restore ABI compatibility with
+     pre-7.6 versions, which defined a global no_arg variable instead of putting
+     it in the RE class. (See also #8 below.)
+.  Remove a line of dead code, identified by coverity and reported by Nuno
+     Lopes.
+.  Fixed two related pcregrep bugs involving -r with --include or --exclude:
+     (1) The include/exclude patterns were being applied to the whole pathnames
+         of files, instead of just to the final components.
+     (2) If there was more than one level of directory, the subdirectories were
+         skipped unless they satisfied the include/exclude conditions. This is
+         inconsistent with GNU grep (and could even be seen as contrary to the
+         pcregrep specification - which I improved to make it absolutely clear).
+         The action now is always to scan all levels of directory, and just
+         apply the include/exclude patterns to regular files.
+.  Added the --include_dir and --exclude_dir patterns to pcregrep, and used
+     --exclude_dir in the tests to avoid scanning .svn directories.
+.  Applied Craig's patch to the QuoteMeta function so that it escapes the
+     NUL character as backslash + 0 rather than backslash + NUL, because PCRE
+     doesn't support NULs in patterns.
+.  Added some missing "const"s to declarations of static tables in
+     pcre_compile.c and pcre_dfa_exec.c.
+.  Applied Craig's patch to pcrecpp.cc to fix a problem in OS X that was
+     caused by fix #2  above. (Subsequently also a second patch to fix the
+     first patch. And a third patch - this was a messy problem.)
+.  Applied Craig's patch to remove the use of push_back().
+. Applied Alan Lehotsky's patch to add REG_STARTEND support to the POSIX
+     matching function regexec().
+. Added support for the Oniguruma syntax \g<name>, \g<n>, \g'name', \g'n',
+     which, however, unlike Perl's \g{...}, are subroutine calls, not back
+     references. PCRE supports relative numbers with this syntax (I don't think
+     Oniguruma does).
+. Previously, a group with a zero repeat such as (...){0} was completely
+     omitted from the compiled regex. However, this means that if the group
+     was called as a subroutine from elsewhere in the pattern, things went wrong
+     (an internal error was given). Such groups are now left in the compiled
+     pattern, with a new opcode that causes them to be skipped at execution
+     time.
+. Added the PCRE_JAVASCRIPT_COMPAT option. This makes the following changes
+     to the way PCRE behaves:
+     (a) A lone ] character is dis-allowed (Perl treats it as data).
+     (b) A back reference to an unmatched subpattern matches an empty string
+         (Perl fails the current match path).
+     (c) A data ] in a character class must be notated as \] because if the
+         first data character in a class is ], it defines an empty class. (In
+         Perl it is not possible to have an empty class.) The empty class []
+         never matches; it forces failure and is equivalent to (*FAIL) or (?!).
+         The negative empty class [^] matches any one character, independently
+         of the DOTALL setting.
+. A pattern such as /(?2)[]a()b](abc)/ which had a forward reference to a
+     non-existent subpattern following a character class starting with ']' and
+     containing () gave an internal compiling error instead of "reference to
+     non-existent subpattern". Fortunately, when the pattern did exist, the
+     compiled code was correct. (When scanning forwards to check for the
+     existencd of the subpattern, it was treating the data ']' as terminating
+     the class, so got the count wrong. When actually compiling, the reference
+     was subsequently set up correctly.)
+. The "always fail" assertion (?!) is optimzed to (*FAIL) by pcre_compile;
+     it was being rejected as not supported by pcre_dfa_exec(), even though
+     other assertions are supported. I have made pcre_dfa_exec() support
+     (*FAIL).
+. The implementation of 13c above involved the invention of a new opcode,
+     OP_ALLANY, which is like OP_ANY but doesn't check the /s flag. Since /s
+     cannot be changed at match time, I realized I could make a small
+     improvement to matching performance by compiling OP_ALLANY instead of
+     OP_ANY for "." when DOTALL was set, and then removing the runtime tests
+     on the OP_ANY path.
+. Compiling pcretest on Windows with readline support failed without the
+     following two fixes: (1) Make the unistd.h include conditional on
+     HAVE_UNISTD_H; (2) #define isatty and fileno as _isatty and _fileno.
+. Changed CMakeLists.txt and cmake/FindReadline.cmake to arrange for the
+     ncurses library to be included for pcretest when ReadLine support is
+     requested, but also to allow for it to be overridden. This patch came from
+     Daniel Bergstr�m.
+. There was a typo in the file ucpinternal.h where f0_rangeflag was defined
+     as 0x00f00000 instead of 0x00800000. Luckily, this would not have caused
+     any errors with the current Unicode tables. Thanks to Peter Kankowski for
+     spotting this.
+ Version 7.6 28-Jan-08
+ ---------------------
+.  A character class containing a very large number of characters with
+     codepoints greater than 255 (in UTF-8 mode, of course) caused a buffer
+     overflow.
+.  Patch to cut out the "long long" test in pcrecpp_unittest when
+     HAVE_LONG_LONG is not defined.
+.  Applied Christian Ehrlicher's patch to update the CMake build files to
+     bring them up to date and include new features. This patch includes:
+     - Fixed PH's badly added libz and libbz2 support.
+     - Fixed a problem with static linking.
+     - Added pcredemo. [But later removed - see 7 below.]
+     - Fixed dftables problem and added an option.
+     - Added a number of HAVE_XXX tests, including HAVE_WINDOWS_H and
+         HAVE_LONG_LONG.
+     - Added readline support for pcretest.
+     - Added an listing of the option settings after cmake has run.
+.  A user submitted a patch to Makefile that makes it easy to create
+     "pcre.dll" under mingw when using Configure/Make. I added stuff to
+     Makefile.am that cause it to include this special target, without
+     affecting anything else. Note that the same mingw target plus all
+     the other distribution libraries and programs are now supported
+     when configuring with CMake (see 6 below) instead of with
+     Configure/Make.
+.  Applied Craig's patch that moves no_arg into the RE class in the C++ code.
+     This is an attempt to solve the reported problem "pcrecpp::no_arg is not
+     exported in the Windows port". It has not yet been confirmed that the patch
+     solves the problem, but it does no harm.
+.  Applied Sheri's patch to CMakeLists.txt to add NON_STANDARD_LIB_PREFIX and
+     NON_STANDARD_LIB_SUFFIX for dll names built with mingw when configured
+     with CMake, and also correct the comment about stack recursion.
+.  Remove the automatic building of pcredemo from the ./configure system and
+     from CMakeLists.txt. The whole idea of pcredemo.c is that it is an example
+     of a program that users should build themselves after PCRE is installed, so
+     building it automatically is not really right. What is more, it gave
+     trouble in some build environments.
+.  Further tidies to CMakeLists.txt from Sheri and Christian.
+ Version 7.5 10-Jan-08
+ ---------------------
+.  Applied a patch from Craig: "This patch makes it possible to 'ignore'
+     values in parens when parsing an RE using the C++ wrapper."
+.  Negative specials like \S did not work in character classes in UTF-8 mode.
+     Characters greater than 255 were excluded from the class instead of being
+     included.
+.  The same bug as (2) above applied to negated POSIX classes such as
+     [:^space:].
+.  PCRECPP_STATIC was referenced in pcrecpp_internal.h, but nowhere was it
+     defined or documented. It seems to have been a typo for PCRE_STATIC, so
+     I have changed it.
+.  The construct (?&) was not diagnosed as a syntax error (it referenced the
+     first named subpattern) and a construct such as (?&a) would reference the
+     first named subpattern whose name started with "a" (in other words, the
+     length check was missing). Both these problems are fixed. "Subpattern name
+     expected" is now given for (?&) (a zero-length name), and this patch also
+     makes it give the same error for \k'' (previously it complained that that
+     was a reference to a non-existent subpattern).
+.  The erroneous patterns (?+-a) and (?-+a) give different error messages;
+     this is right because (?- can be followed by option settings as well as by
+     digits. I have, however, made the messages clearer.
+.  Patterns such as (?(1)a|b) (a pattern that contains fewer subpatterns
+     than the number used in the conditional) now cause a compile-time error.
+     This is actually not compatible with Perl, which accepts such patterns, but
+     treats the conditional as always being FALSE (as PCRE used to), but it
+     seems to me that giving a diagnostic is better.
+.  Change "alphameric" to the more common word "alphanumeric" in comments
+     and messages.
+.  Fix two occurrences of "backslash" in comments that should have been
+     "backspace".
+. Remove two redundant lines of code that can never be obeyed (their function
+     was moved elsewhere).
+. The program that makes PCRE's Unicode character property table had a bug
+     which caused it to generate incorrect table entries for sequences of
+     characters that have the same character type, but are in different scripts.
+     It amalgamated them into a single range, with the script of the first of
+     them. In other words, some characters were in the wrong script. There were
+     thirteen such cases, affecting characters in the following ranges:
+       U+002b0 - U+002c1
+       U+0060c - U+0060d
+       U+0061e - U+00612
+       U+0064b - U+0065e
+       U+0074d - U+0076d
+       U+01800 - U+01805
+       U+01d00 - U+01d77
+       U+01d9b - U+01dbf
+       U+0200b - U+0200f
+       U+030fc - U+030fe
+       U+03260 - U+0327f
+       U+0fb46 - U+0fbb1
+       U+10450 - U+1049d
+. The -o option (show only the matching part of a line) for pcregrep was not
+     compatible with GNU grep in that, if there was more than one match in a
+     line, it showed only the first of them. It now behaves in the same way as
+     GNU grep.
+. If the -o and -v options were combined for pcregrep, it printed a blank
+     line for every non-matching line. GNU grep prints nothing, and pcregrep now
+     does the same. The return code can be used to tell if there were any
+     non-matching lines.
+. Added --file-offsets and --line-offsets to pcregrep.
+. The pattern (?=something)(?R) was not being diagnosed as a potentially
+     infinitely looping recursion. The bug was that positive lookaheads were not
+     being skipped when checking for a possible empty match (negative lookaheads
+     and both kinds of lookbehind were skipped).
+. Fixed two typos in the Windows-only code in pcregrep.c, and moved the
+     inclusion of <windows.h> to before rather than after the definition of
+     INVALID_FILE_ATTRIBUTES (patch from David Byron).
+. Specifying a possessive quantifier with a specific limit for a Unicode
+     character property caused pcre_compile() to compile bad code, which led at
+     runtime to PCRE_ERROR_INTERNAL (-14). Examples of patterns that caused this
+     are: /\p{Zl}{2,3}+/8 and /\p{Cc}{2}+/8. It was the possessive "+" that
+     caused the error; without that there was no problem.
+. Added --enable-pcregrep-libz and --enable-pcregrep-libbz2.
+. Added --enable-pcretest-libreadline.
+. In pcrecpp.cc, the variable 'count' was incremented twice in
+     RE::GlobalReplace(). As a result, the number of replacements returned was
+     double what it should be. I removed one of the increments, but Craig sent a
+     later patch that removed the other one (the right fix) and added unit tests
+     that check the return values (which was not done before).
+. Several CMake things:
+     (1) Arranged that, when cmake is used on Unix, the libraries end up with
+         the names libpcre and libpcreposix, not just pcre and pcreposix.
+     (2) The above change means that pcretest and pcregrep are now correctly
+         linked with the newly-built libraries, not previously installed ones.
+     (3) Added PCRE_SUPPORT_LIBREADLINE, PCRE_SUPPORT_LIBZ, PCRE_SUPPORT_LIBBZ2.
+. In UTF-8 mode, with newline set to "any", a pattern such as .*a.*=.b.*
+     crashed when matching a string such as a\x{2029}b (note that \x{2029} is a
+     UTF-8 newline character). The key issue is that the pattern starts .*;
+     this means that the match must be either at the beginning, or after a
+     newline. The bug was in the code for advancing after a failed match and
+     checking that the new position followed a newline. It was not taking
+     account of UTF-8 characters correctly.
+. PCRE was behaving differently from Perl in the way it recognized POSIX
+     character classes. PCRE was not treating the sequence [:...:] as a
+     character class unless the ... were all letters. Perl, however, seems to
+     allow any characters between [: and :], though of course it rejects as
+     unknown any "names" that contain non-letters, because all the known class
+     names consist only of letters. Thus, Perl gives an error for [[:1234:]],
+     for example, whereas PCRE did not - it did not recognize a POSIX character
+     class. This seemed a bit dangerous, so the code has been changed to be
+     closer to Perl. The behaviour is not identical to Perl, because PCRE will
+     diagnose an unknown class for, for example, [[:l\ower:]] where Perl will
+     treat it as [[:lower:]]. However, PCRE does now give "unknown" errors where
+     Perl does, and where it didn't before.
+. Rewrite so as to remove the single use of %n from pcregrep because in some
+     Windows environments %n is disabled by default.
+ Version 7.4 21-Sep-07
  ---------------------
 .  Change 7.3/28 was implemented for classes by looking at the bitmap. This
-Line 32 
 Version 7.4 10-Sep-07
+Line 559 
 Version 7.4 10-Sep-07
      compatibility, even though it is no longer used.
 .  Added macro for snprintf to pcrecpp_unittest.cc and also for strtoll and
      strtoull to pcrecpp.cc to select the available functions in WIN32 when the
-     windows.h file is present (where different names are used).
+     windows.h file is present (where different names are used). [This was
+     reversed later after testing - see 16 below.]
 .  Changed all #include <config.h> to #include "config.h". There were also
      some further <pcre.h> cases that I changed to "pcre.h".
-Line 60 
 Version 7.4 10-Sep-07
+Line 588 
 Version 7.4 10-Sep-07
 . Updated the tests so that they work when \R is defaulted to ANYCRLF.
+. Added checks for ANY and ANYCRLF to pcrecpp.cc where it previously
+     checked only for CRLF.
+. Added casts to pcretest.c to avoid compiler warnings.
+. Added Craig's patch to various pcrecpp modules to avoid compiler warnings.
+. Added Craig's patch to remove the WINDOWS_H tests, that were not working,
+     and instead check for _strtoi64 explicitly, and avoid the use of snprintf()
+     entirely. This removes changes made in 7 above.
+. The CMake files have been updated, and there is now more information about
+     building with CMake in the NON-UNIX-USE document.
  Version 7.3 28-Aug-07
  ---------------------

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