[PATCH 1/4] setup.exe

Christopher Faylor cgf-use-the-mailinglist-please@cygwin.com
Fri Feb 15 00:22:00 GMT 2013

On Thu, Feb 14, 2013 at 09:30:59PM +0100, Achim Gratz wrote:
>Christopher Faylor writes:
>> There is no need for setup.exe to add anything to a requires list due
>> to autodep.
>It needs to ensure that the package providing the script is installed,
>which means installation, updating or doing nothing; depending on what
>state the installation is in.  In terms of setup.ini this is "adding to
>the requires list", in terms of setup.exe this list has been absorbed
>into the package_db state at that point already.

Actually, it needs to detect when a DLL is being installed.  AFAIK,
that's it.  I don't think detecting when a package is being deleted
really matters.

>> autorun: /usr/bin/rebaseall .*/[^/]*\.(?:dll|so|oct)$
>> Maybe that's what you're saying.  I was thinking that two lines would
>> make parsing easier but I suppose that you could also just assume that
>> the first "program to run" pattern doesn't contain any spaces so the
>> parsing would be the equivalent of ([\S+])\s*(.*)$ .  An empty regex
>> string could be allowed to match everything.
>Yes, splitting the parsing over two lines should be slightly easier, but
>probably not so much as to lose sleep over.
>The bigger problem is that the std::regex library has not been
>implemented for gcc yet, so we'd either have to use an extra library or
>dispense with full regex parsing.  It seems not very likely that even
>the 4.8 gcc series changes this, so suggestions on what to do instead
>are welcome (using boost looks possible, but is said to be buggy).

You can certainly parse regex's in c++ without relying on std::regex.

>The two current applications of autodep however could be implemented by
>either matching path components or the extension which could be
>implemented with the existing string functions and perhaps using a
>slightly different syntax in setup.ini:
>autoext: dll so oct
>autopath: /usr/share/info /usr/info
>I don't know if you had other applications for autodep in mind where
>these two wouldn't be sufficient and a real regex parser would be
>needed, though.

Huh?  That would not help with the very case that we're talking about -


More information about the Cygwin-apps mailing list