armv7 embedded device with no Graphical interface

jasonnnn · wrote on 16 Sept 2019, 17:36

thanks for the reply again, would that be the contrib you refer to https://github.com/qt/qtbase ??

SGaist · 16 Sept 2019, 20:16

GitHub is a mirror, the official sources are at https://code.qt.io. However, you seem to have already the sources so there's no need to clone it again.

jasonnnn · S SGaist 16 Sept 2019, 20:01

@sgaist thnaks, but the source i compiled was an old version I belive 5.4, it would have to be upate correct ??

I am just going to rebuild using 5.13. Now as far as the next steps how do I go about to get the Web assembly running and imported from the QT creator

thanks

jasonnnn · wrote on 17 Sept 2019, 15:21

while trying to run configure i got this, i did clone from https://code.qt.io.

root@axcf2152:/opt/qt5/qtbase# ./configure
Can't locate File/Basename.pm in @INC (you may need to install the File::Basename module) (@INC contains: /etc/perl /usr/lib/perl/site_perl/5.24.4/ /usr/lib/perl/site_perl/5.24.4 /usr/lib/perl/vendor_perl/5.24.4/ /usr/lib/perl/vendor_perl/5.24.4 /usr/lib/perl/5.24.4/ /usr/lib/perl/5.24.4 /usr/local/lib/site_perl /usr/lib/perl/5.24.4 .) at /opt/qt5/qtbase/bin/syncqt.pl line 47.
BEGIN failed--compilation aborted at /opt/qt5/qtbase/bin/syncqt.pl line 47.

SGaist · wrote on 17 Sept 2019, 15:33

Did you clone qtbase directly ?

In any case, I would recommend to put the sources somewhere a standard user can access (it's home directory for example) rather that building stuff as root.

That said, you can clone the qt5 repository and then follow the instructions to get all the sources checkout out properly.

jasonnnn · wrote on 18 Sept 2019, 13:24

We are changing the focus and following this guide as well

running into problems with emsdk

Error: No tool or SDK found by name 'sdk-releases-fastcomp-f3030d9fffcc9e1287cb6b8e72982e94ece31d71-64bit'.

SGaist · wrote on 18 Sept 2019, 18:42

Which guide ?

jasonnnn · wrote on 18 Sept 2019, 19:58

https://wiki.qt.io/Qt_for_WebAssembly

my question on that is when i build from source do I only need to build QTbase ??

thanks

SGaist · wrote on 18 Sept 2019, 21:11

If you want to use QtQuick, you should also build qtdeclarative.

jasonnnn · wrote on 18 Sept 2019, 21:29

I am really not sure about what we need to be totally honest, QT has some many options it becomes overwhelming.

We do understand that the functionality we need lies on QT Web Assembly, What would exactly the source package dependencies and all that I need to build to run the QT web assembly ?? is qt declarative and QTquick mandatories, we need this deployment as light as possible

SGaist · wrote on 19 Sept 2019, 19:02

Mandatory ? No they are not, it depends mainly on what your application should show/do. If you need some fancy animations, then QtQuick is the way to go.

jasonnnn · wrote on 19 Sept 2019, 19:04

I have successfully built QTbase and emsdk (nodejs ) , what would be the next step?

SGaist · wrote on 19 Sept 2019, 19:18

Create a small application and follow the Build and Run applications part of the guide you are following. Then you shall have an application ready.

jasonnnn · 20 Sept 2019, 11:57

while building

./configure xplatform wasm-emscripten -nomake examples -prefix $PWD/qtbase

cd qtbase
/opt/qt5/qtbase/configure -top-level xplatform wasm-emscripten -nomake examples -prefix /opt/qt5/qtbase
<srcbase> = /opt/qt5/qtbase
<bldbase> = /opt/qt5/qtbase
<outbase> = /opt/qt5/qtbase
Creating qmake...
.Done.
ERROR: Invalid command line parameter 'xplatform'.

jsulm · wrote on 20 Sept 2019, 11:57

@jasonnnn said in armv7 embedded device with no Graphical interface:

'xplatform'.

should be -xplatform

jasonnnn · wrote on 20 Sept 2019, 12:12

thank you caught that,

now i am getting this one

./configure -xplatform wasm-emscripten -nomake examples -prefix $PWD/qtbase + cd qtbase

/opt/qt5/qtbase/configure -top-level -xplatform wasm-emscripten -nomake examples -prefix /opt/qt5/qtbase
<srcbase> = /opt/qt5/qtbase
<bldbase> = /opt/qt5/qtbase
<outbase> = /opt/qt5/qtbase
Creating qmake...
.Done.
Project ERROR: Cannot run target compiler 'em++'. Output:
===================
===================
Maybe you forgot to setup the environment?

SGaist · 20 Sept 2019, 20:02

Is the compiler findable in your PATH environment variable ?

jasonnnn · S SGaist 20 Sept 2019, 19:11

@sgaist how could I check that ? , i did execute source ./emsdk_env.sh

SGaist · 23 Sept 2019, 11:41

First thing, try to call em++ in the same terminal you are currently building Qt in.

jasonnnn · S SGaist 20 Sept 2019, 20:51

@sgaist thanks for supporting, we are finding problems building Emscripten , thatis the main reason why QT will no build. Unfortunately, we may have to give up on QT for this project.

I don't believe you guys would be supporting un on the emscripten side, but just in case here is the build error (next post)