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and subject line Bug#344242: wxwidgets "leaks" regfree() symbol, conflicts with
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Date: Tue, 20 Dec 2005 22:05:26 -0500 (EST)
From: Peter Amstutz <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: wxwidgets "leaks" regfree() symbol, conflicts with libc
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Package: wxwidgets2.6
Version: 2.6.1.2
Debian package of WxWidgets v2.6.1.2 on AMD64 Linux
WxWidgets has its own regular expression library. Among other things, this
library defines the function regfree(). This directly conflicts with the
POSIX regfree() which is provided by libc on Unix platforms. As a result,
it is possible to get into a situation where an application (perhaps one
linking with a 3rd party library or plugin) links to regcomp() and
regexec() provided by libc, but regfree() provided by WxWidgets. This
causes a crash because the WxWidgets regfree() is obviously not compatible
with the libc regcomp().
I can see no good reason for the implementation of regfree() within
WxWidgets to be named that way. Anyone using regular expressions in
WxWidgets should be doing so via the WxWidgets C++ class. The obvious fix
is to simply rename regfree() to something that won't cause a conflict,
such as wx_regfree().
Bug report has already been filed upstream with the proposed fix (attached
patch).
[ Peter Amstutz ][ [EMAIL PROTECTED] ][ [EMAIL PROTECTED] ]
[Lead Programmer][Interreality Project][Virtual Reality for the Internet]
[ VOS: Next Generation Internet Communication][ http://interreality.org ]
[ http://interreality.org/~tetron ][ pgpkey: pgpkeys.mit.edu 18C21DF7 ]
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Date: Wed, 21 Dec 2005 15:36:11 +1030
To: Peter Amstutz <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
Subject: Re: Bug#344242: wxwidgets "leaks" regfree() symbol, conflicts with libc
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From: Ron <[EMAIL PROTECTED]>
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Hi,
On Tue, Dec 20, 2005 at 10:05:26PM -0500, Peter Amstutz wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Package: wxwidgets2.6
> Version: 2.6.1.2
>
> Debian package of WxWidgets v2.6.1.2 on AMD64 Linux
>
> WxWidgets has its own regular expression library. Among other things, this
> library defines the function regfree(). This directly conflicts with the
> POSIX regfree() which is provided by libc on Unix platforms. As a result,
> it is possible to get into a situation where an application (perhaps one
> linking with a 3rd party library or plugin) links to regcomp() and
> regexec() provided by libc, but regfree() provided by WxWidgets. This
> causes a crash because the WxWidgets regfree() is obviously not compatible
> with the libc regcomp().
>
> I can see no good reason for the implementation of regfree() within
> WxWidgets to be named that way. Anyone using regular expressions in
> WxWidgets should be doing so via the WxWidgets C++ class. The obvious fix
> is to simply rename regfree() to something that won't cause a conflict,
> such as wx_regfree().
>
> Bug report has already been filed upstream with the proposed fix (attached
> patch).
And as you'll note there, it is already reported fixed in the 2.6 branch
of cvs. So I'm closing this now as a housekeeping issue, rather than
marking it pending, as its been amply reported and will be fixed with
the next upload (once a couple of the more serious regressions are
also repaired, but) hopefully soon.
thanks,
Ron
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