QtWebEngine + Embedded

[njozwiak]

Hi all,

Why does the Qt 5.4.2 source blocking the building of WebEngine for Embedded Linux? In the file: qtwebengine/tools/qmake/mkspecs/features/functions.prf there are the following lines under isPlatformSupported:

skipBuild("Qt WebEngine can currently only be built for Linux (GCC), Windows (MSVC 2013), OS X (XCode 5.1+) or Qt for Device Creation.")
return(false)

If I disable these and force return true there appears to be no issues building WebEngine. And in the following document: https://wiki.qt.io/QtWebEngine it clearly says it is supported in both Embedded Linux and Embedded Android. So why do I have to hack a PRF file to get this thing to build?

Thanks

[SGaist]

Hi,

I think the key word is intend. The fact that it builds and run doesn't mean that these platforms are already tested and validated.

[njozwiak]

I see, so there is no official support for WebEngine in Embedded Linux at this time?

[SGaist]

That I can't tell, I don't know

[sam.nazarko]

Hi

May I ask how you got this to build?

I am trying to compile Qt with the following configuration (for Raspberry Pi):

        ./configure --prefix=/usr -release -opensource -confirm-license -c++11 -no-largefile -no-qml-debug -system-zlib \
        -no-journald -system-libpng -system-freetype -system-libjpeg -system-sqlite -openssl -no-pulseaudio -alsa \
        -no-sql-db2 -no-sql-ibase -no-sql-mysql -no-sql-oci -no-sql-odbc -no-sql-psql -no-sql-sqlite2 -no-sql-tds -nomake examples -reduce-exports \
-no-directfb -no-linuxfb -eglfs -no-xcb -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=/usr/bin/ -sysroot /

Here is my patch:

diff --git a/qtwebengine/tools/qmake/mkspecs/features/functions.prf b/qtwebengine/tools/qmake/mkspecs/features/functions.prf
index ef0320d..5abaecc 100644
--- a/qtwebengine/tools/qmake/mkspecs/features/functions.prf
+++ b/qtwebengine/tools/qmake/mkspecs/features/functions.prf
@@ -12,13 +12,9 @@ defineTest(isPlatformSupported) {
     return(false)
   }
 
-  linux-g++*:!isGCCVersionSupported(): return(false)
-  !isPythonVersionSupported(): return(false)
-  linux-g++*|win32-msvc2013|macx-clang: return(true)
   boot2qt: return(true)
 
-  skipBuild("Qt WebEngine can currently only be built for Linux (GCC), Windows (MSVC 2013), OS X (XCode 5.1+) or Qt for Device Creation.")
-  return(false)
+  return(true)
 }
 
 defineTest(isPythonVersionSupported) {
-- 
2.1.0

And it succeeds, but I don't get a message about WebEngine being an unsupported platform. It simply does not build that module. I tried to follow this reference here, but had no luck either: https://forum.qt.io/topic/48223/webengine-raspberry-pi/2

I am building native, not cross, on Debian Jessie.

Thanks in advance,

Sam