[HEADSUP] Let's start a Cygwin 1.7 release area

Corinna Vinschen corinna-cygwin@cygwin.com
Tue Apr 22 16:01:00 GMT 2008

On Apr 22 11:51, Charles Wilson wrote:
> Brian Dessent wrote:
> > the DLL already supports
> > parallel installs by the fact that it uses /etc/fstab.
> Only in very limited cases:
> (1) we're talking about cygwin-1.7.x
> (2) Either 
>     (a) only one of those parallel instances is in use at a time,
>     including installed services,
>     or
>     (b) all of those parallel instances have exactly the same version of
>     the DLL
> (3) Even so, doing this is not officially supported (the current
> dual-installation "support" vis-a-vis cygwin-1.5.x and cygwin-1.7.x is 
>     (a) temporary and
>     (b) intended for package maintainers only, in order to prepare the
>     cygwin-1.7 packages -- and package maintainers generally know what
>     they are doing and what the pitfalls of a dual/multiple installation
>     are.
> Right?  You still have to worry about the shared memory region name, and
> its format which may vary with DLL version. Plus there still might be
> other stuff that prevents parallel cygwin installs from running
> simultaneously.  And I don't think supporting simultaneous use of
> multiple cygwin installations is one of our goals, is it?

In theory, the latest incarnation of the Cygwin DLL should work 
in parallel with a 1.5.x DLL.  In theory.  I didn't actually test it.


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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