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Bug#950790: libqt5qml5: Do a double build with SSE2 enabled on i386



On Thu, Feb 06, 2020 at 11:08:41AM -0300, Lisandro Damián Nicanor Pérez Meyer wrote:
> Lars pointed out [1] that QtQml (and so I guess this lib, will need to double
> check) would really benefit from a i386 build with SSE2 enabled.
>
> [1] <https://lists.qt-project.org/pipermail/development/2020-February/038731.html>

Already discussed on IRC, but for the record:

Actually Qt QML has a runtime requirement for SSE2, so I am not sure the
non-SSE2 build makes sense:

https://sources.debian.org/src/qtdeclarative-opensource-src/5.12.5-5/src/qml/qml/v8/qv8engine.cpp/#L143

I think we should just switch the default build to SSE2 by passing
CONFIG+=sse2 to qmake when DEB_HOST_ARCH_CPU = i386.

--
Dmitry Shachnev

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