1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
flex (2.6.0-5) experimental; urgency=low
Flex no longer automatically pulls in libfl-dev, so at the very least
packages using C++ lexers will need to pull in libfl-dev in build
depends. libfl-dev is now demoted to a suggestion. This will impact
compilation where there was an implicit dependency on the C++ header
files provided by libfl-dev; please install libfl-dev explicitly if that
is the case.
-- Manoj Srivastava <srivasta@debian.org> Mon, 08 Feb 2016 08:27:57 -0800
flex (2.5.33-7) unstable; urgency=low
This version of Flex is a major upgrade from previous versions. There
have been extensive changes. These changes require source changes in
lex input files. The new direction flex is taking is to incorporate
new functionality at the expense of POSIX or backward
compatibility. This can also be considered part of the gcc migration
process; flex has been updated (the buggy, rickety set of patches
required to make it work with gcc was dumped in favour of a well
engineered upstream migration).
Flex scanners are now reenterant, you may have multiple scanners in
the same program with differing sets of defaults, and they play
nicer with modern C and C++ compilers. C++ scanners are compatible
with recent c++ compilers (conform to ANSI C++, gcc 3.2), supports
bison variables yylval and yylloc. Some variables have been
renamed. Flex generates C99 defs now, see YY_TRADITIONAL_FUNC_DEFS.
yylineno is present in all scanners. yylineno is per-buffer in
reentrant scanners. Flex tries its best to output only the relevant
portions of the skeleton when generating a scanner, thus avoiding as
much conditional compilation as possible
The signature of all functions has changed. flex has new command line
options, and option parsing has changed (now also supports POSIX
conventions optionally). Handles POSIXLY_CORRECT environment
variable. Various i18n translations are included in the
distribution. Flex now works with recent bison versions. The new
scanners do not polllute the global name space, and thus macros that
used to be available to user code are no longer present.
Flex has gained an extensive new test suite run at build time to test
for regressions. The flip side is that Flex no longer conforms to the POSIX lex
behaviour, and the scanners require conforming implementations when
flex is used in ANSI C mode. Flex has broken backwards
compatibility. This is not a bug, but done deliberately, by
design.
The package flex-old provides the same behaviour as version 2.5.4a of
Flex.
Please make sure you are prepared for these changes in Flex
before continuing with its upgrade.
-- Manoj Srivastava <srivasta@debian.org> Fri, 31 Oct 2003 21:53:16 -0600
|
