Hi John,

John Duncan wrote:

>Hi,
>     I have checked the docs but want some guidance on whether applications 
> that work on Solaris 8.5 have a good chance of working on OpenSolaris. Mainly 
> this one :
>
>http://www.cs.bham.ac.uk/research/poplog/freepoplog.html#pcsolaris
>
>      It would be a major exercise for me to get into OpenSolaris and I am 
> looking for a bit of certainty before putting in the effort.
>
People smarter than I can probably fill you in better, but if the
application sticks to public ABIs it should, generally, have forward
compatibility.  I can speak for all OpenSolaris variants (though they're
probably all nearly the same at this point), but for Sun's distribution
as Solaris Express, anything that didn't work with Solaris 8 would be a
bug on Solaris's part (above caveat aside).

One way to test this would be to run appcert
(http://www.sun.com/software/solaris/programs/abi/appcert_faq.xml)
against the programs.  That'd give you a reasonable amount of certainty
that they'd run against at least Solaris 10, which is very close to the
OpenSolaris codebase.

Having said that, I've heard appcert will report things that won't
actually be an issue.

I hope that helps some,

- Matt

p.s.: Generally speaking, forward compatibility is very, very good.  I
took a SunOS 4.1 binary for pine a few years ago and ran it on Solaris 7
(I think) and didn't have any issues.  Frankly, I expected to have issues.

-- 
Matt Ingenthron - Technical Specialist, Web Services 
Sun Microsystems, Inc. - Client Solutions
http://blogs.sun.com/mingenthron/
email: [EMAIL PROTECTED]             Phone: 310-242-6439


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