[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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