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Re: Trouble with running cygwin dll on Vortex86MX+ CPU

On Apr  4 09:44, Colin wrote:
> Corinna Vinschen <corinna-cygwin <at>> writes:
> > > In discussing this with the embedded PC supplier, he suggests that the 
> > > cygwin1.dll is exiting because it doesn't recognise the CPU. Is this 
> > > explanation plausible? And if it is, is there a solution available, or 
> > > must I give up on using cygwin for this application?
> > 
> > As far as the pre-built Cygwin goes, I fear that you can't do a lot.
> > You could try to build Cygwin in i486 mode, and if that works, you have
> > to make sure to build applications against the newly built crt0.o and
> > libcygwin.a.  But that's not all to keep in mind.  When building
> > applications, parts of GCC are linked in as well, namely crtbegin.o and
> > crtend.o, and sometimes cyggcc_s-1.dll.  All these may or may not use
> > post-i486 opcodes, so if push comes to shove you'd end up having to
> > rebuild GCC for i486 as well.
> > 
> > I'm not trying to discourage you, but you might have a lot of
> > experimenting to do to get this working.
> > 
> > Corinna
> > 
> Thanks Corinna for this information. Now I understand the underlying issue 
> and can decide how to move forward. 
> Given that my application is not so big, I suspect that the pragmatic 
> course will be to re-code it for Win32. 

Alternatively, even though I hate to point people to older versions
of Cygwin, you could try the old Cygwin 1.5.25.  I'm not quite sure,
but I think it was compiled for i586 or even i386.  It's not as
feature-rich as Cygwin 1.7 but it worked, and maybe the set of
POSIX functions is sufficient for you.  See the Cygwin time machine

If you want to go even further back in time, then MSYS may be the
right thing for you.  It's a rip-off of Cygwin 1.3.22 with a few
patches to supposedly building native executables a bit better.
Just make sure to grab the old MSYS, not the more recent MSYS2.


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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