[Buildroot] No OpenSSL 1.1.x support in Qt 5.6.x.
Vadim Kochan
vadim4j at gmail.com
Sat Mar 2 21:13:42 UTC 2019
Hi All,
On Sat, Mar 02, 2019 at 09:27:37PM +0100, Peter Korsgaard wrote:
> >>>>> "James" == James Grant <jamesg at zaltys.org> writes:
>
> > On 1/03/2019 22:07, Peter Korsgaard wrote:
> >>>>>>> "James" == James Grant<james.grant at jci.com> writes:
> >> > Hi,
> >> > There is no OpenSSL 1.1.x support in Qt 5.6.x and no-one appears to have back-ported support.
> >>
> >> >https://development.qt-project.narkive.com/RW4wxYXY/openssl-1-1-x-support-on-qt-5-6-5-9
> >>
> >> > I'm suggesting that for upcoming 2019.02 release that no attempt
> >> > is made to build with SSL support for 5.6.
> >>
> >> > About to send patch to that effect.
> >>
> >> Yes. I was hoping that users of Qt 5.6 would step up and send patches,
> >> but given that hasn't happened and 2019.02 is overdue, that is probably
> >> the least bad solution.
> >>
> >> Looking forward to your patch.
>
> > Earliest version of a OpenSSL 1.1 patch for Qt 5.x I can find is
> > against Qt 5.7 (LGPLv3). If you adapted / backported that for Qt 5.6
> > there is an argument you're contaminating LGPLv2 Qt5.6 with LGPLv3
> > code - defeating the whole point of keeping Qt 5.6 for many.
>
> Yes, agreed.
>
> > I got Qt 5.6 compiling with LibreSSL (which is keeping a level of
> > OpenSSL 1.0 compatibility). Currently Qt is set to dlopen() OpenSSL
> > at runtime (-openssl), changing this to shared linkage
> > (-openssl-linked), then compiling only the SSL module with
> > -fpermissive yields a working build. No actual code changes needed.
>
> > Is there really any benefit to dlopen() OpenSSL on an embedded system
> > in any case?
>
> Not that I am aware of.
>
>
> > The -fpermissive flag is needed to workaround 'const BIO_METHOD *'
> > vs. 'BIO_METHOD *' changes to BIO_new() and BIO_s_mem() function
> > signatures.
>
> > 'download' example successfully downloaded a file from a https site for me.
>
> > Should I put together a patch doing this? ... or is someone likely to
> > come forward with a more comprehensive LGPLv2 licensed fix?
>
> If it is a simple patch, then please post it. It may be interesting for
> users on 5.6.
>
Just FYI, I found only this patch:
https://github.com/patch-exchange/openssl-1.1-transition/blob/master/qt5-qtbase/qtbase-5.7.0-openssl-1.1.patch
Regards,
Vadim Kochan
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