[Development] Qt 5 types under consideration for deprecation / removal in Qt 6

Konstantin Tokarev annulen at yandex.ru
Fri May 31 00:51:26 CEST 2019

31.05.2019, 00:57, "Thiago Macieira" <thiago.macieira at intel.com>:
> On Thursday, 30 May 2019 14:34:52 PDT Konstantin Tokarev wrote:
>>  > 3) all tools in cross builds link to a host QtCore that must be
>>  > preinstalled Preferably, reuse the tools from that host build instead of
>>  > building again
>>  The latter item implies that there should be some compatibility gurantees
>>  allowing to use tools from Qt 6.x when building Qt 6.y, otherwise it will
>>  be really inconvenient
> I understand, but aside from qmake, I don't know of any build system that
> allows for building both host and target in the same build. That means
> whatever we use in Qt 6, we'll a separate build for host tools when cross-
> compiling.
> I don't see a problem in requiring the same version in the host and the target
> being built. But if this is not possible, then we'll need to have an extra
> step when preparing for cross-builds that bootstraps the host tools.

BTW, are you also planning to drop support for using PCH with GCC-like compilers
when building Qt? It's a thing that is trivial to do with make or qmake, but turns into
rocket science with cmake.


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