Hi,
To see what the wasm binaries were actually compiled with, look in
include/QtCore/qconfig.h for QT_EMCC_VERSION
On 15/3/25 07:37, Glen Mabey wrote:
Hello —
I just downloaded the precompiled version of 6.9.0rc only to find that
the file
QtPublicToolchainWasmHelpers
indicates 3.1.56 — I did a git pull on the 6.9.0 branch of qtbase/
and it says 3.1.70
Plz halp.
Glen
On Thu, Jan 30, 2025 at 5:47 AM Piotr Wierciński
<piotr.wiercin...@qt.io> wrote:
Hi!
The correct version of Emscripten for Qt 6.9 is 3.1.70, it has
been updated recently in `QtPublicToolchainWasmHelpers`.
As for support of JSPI, `-sASYNCIFY=2` should work in Emscricpten
3.1.56. However, in 3.1.59 it got deprecated in favor of `-sJSPI`
flag.
It is documented here:
https://github.com/emscripten-core/emscripten/blob/main/ChangeLog.md#3159---043024.
Please note that using JSPI requires enabling it via experimental
flag in Chrome.
There is still some work required for Qt to work smoothly with
JSPI, but we are on our way to get there.
Regards,
Piotr Wierciński
> -----Original Message-----
> From: Interest <interest-boun...@qt-project.org> On Behalf Of
Glen Mabey
> Sent: Thursday, January 23, 2025 6:41 PM
> To: interest@qt-project.org
> Subject: [Interest] appropriate versions of emscripten for 6.9
>
> It looks like (in QtPublicToolchainWasmHelpers.cmake) that the
official version of emsdk to use with 6.9 will be 3.1.56 (same as
6.8).
> I'm trying (unsuccessfully so far) to get a QFileDialog to pop
open from my QML app.
> I have been working to pursue the appropriate JSPI compile
options, yet it seems that it (-sASYNCIFY=2) isn't supported in
3.1.56.
> So, I realize that JSPI isn't necessarily going to be supported
in 6.9, but it's apparent (from the references to JSPI in the
docs) that y'all are working towards that destination eventually
(but not there yet).
> Or, is it just that QtPublicToolchainWasmHelpers.cmake needs to
be updated?
> If not, then is there an emscripten version that you *have* had
good success with?
>
> Best Regards,
> Glen
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