[OE-core] qt4-embedded - image size

[John Stirling]

Looking fairly promising so far. Image size down from 280Mb to 90Mb and
only Qt related stuff now seems to be in /usr/lib/

The font's seem to be missing though -
QFontDatabase: Cannot find font directory /usr/lib/fonts - is Qt installed
correctly?

We won't need all the fonts in any case but would you expect them to have
been pulled in automatically ?

Here's what I now have in /usr/lib/libQt*

-rwxr-xr-x root       root          3157228 ./usr/lib/libQtCoreE.so.4.8.0
-rwxr-xr-x root       root           481476 ./usr/lib/libQtDBusE.so.4.8.0
-rwxr-xr-x root       root          3571644
./usr/lib/libQtDeclarativeE.so.4.8.0
-rwxr-xr-x root       root          9643544 ./usr/lib/libQtGuiE.so.4.8.0
-rwxr-xr-x root       root          1231712
./usr/lib/libQtNetworkE.so.4.8.0
-rwxr-xr-x root       root          2507000 ./usr/lib/libQtScriptE.so.4.8.0

-rwxr-xr-x root       root           217564 ./usr/lib/libQtSqlE.so.4.8.0
-rwxr-xr-x root       root           247056 ./usr/lib/libQtXmlE.so.4.8.0
-rwxr-xr-x root       root          4412572
./usr/lib/libQtXmlPatternsE.so.4.8.0

Total approx 25Mb there.

Pretty sure I need the first 3, but not sure about the rest. Does that look
about right to you size wise ? We're just trying to tie down flash sizes at
the moment and want to get a fairly accurate estimate for Qt.

I guess also at some point we might want to switch to Qt5. Is that
comparable in size ?



On 10 June 2013 13:17, Paul Eggleton <paul.eggleton at linux.intel.com> wrote:

> On Monday 10 June 2013 12:19:48 John Stirling wrote:
> > The Qt application (qtui) is compiled and has some C++, some QML and
> needs
> > to use dbus. I am kicking it off via './qtui -qws'.
> >
> > So basically if I had this -
> >
> > IMAGE_INSTALL += " \
> > qt4-embedded \
> > qtui \
> > "
> >
> > You suggest just cutting it down to
> >
> > IMAGE_INSTALL += " \
> > qtui \
> > "
> > and it should work itself out ?
>
> Apart from plugins and anything else that your application doesn't get
> directly linked to, yes.
>
> > I am not entirely sure on the 'inherit qt4e' line.
>
> You do want this here, yes.
>
> > SRC_URI = "git://${SOURCE_REPO}/git/${PN}.git;protocol=ssh;tag=${PV}"
>
> I think you probably should specify SRCREV here, even if it's SRCREV =
> "${AUTOREV}" to build the latest version on the specified branch. For tags
> that
> won't change, typically we recommend that you specify the full sha1 hash in
> SRCREV and then the system knows it doesn't need to query the git server to
> get the current hash corresponding to the tag.
>
> > PROVIDES = "${PN}_${PV}"
>
> This should not be necessary.
>
> > DEPENDS = "qt4-embedded"
>
> This is already done for you by inheriting qt4e.
>
> > RPROVIDES = "qtui_${PV}"
>
> This should not be necessary either.
>
> > PACKAGES="${PN}"
>
> Unless you have a good reason to do this I would recommend not doing so;
> the
> standard package splitting should work for most situations and for those
> where
> it needs to be tweaked slightly that can be done fairly easily.
>
> > FILES_${PN} += "/root/qtui /usr/share/reciva/qml/qtui
> > ${sysconfdir}/dbus-1/system.d/"
>
> Typically you would install binaries such as this to ${bindir} rather than
> /root.
>
> Cheers,
> Paul
>
> --
>
> Paul Eggleton
> Intel Open Source Technology Centre
>
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