[maemo-developers] [maemo-developers] Failure to compile Qt 3.3.5, Infinite loop in qemu-arm, bug in qemu-arm or gcc ?

[From: Clemens Eisserer]

Hi Benno,

I am quite sure the problems you experience are because some
executables compiled for arm are used during the build-process of
qt-designer (I guess some source-preprocessors for qt's signal/slot
system) - and because qemu's arm emulation does "not" work (well) - it
hangs.

The way to go is to compile those tools for i386 and place it in a
directory where compiled files for the other toolchain may be placed
(thats how all the utilities like make etc. are also installed, make
on arm-toolchain is also compiled for i386). The set the path so that
only those executables may be started. I succeeded to compile
gnu-classpath with jikes this way.

Good luck, lg Clemens

> Hi,
> I installed scratchbox and the maemo sdk as described on the maemo site.
>
> I can compile the hello-gtk example and other apps without problems.
>
> I tried to compile Qt 3.3.5 from source:
>
> ftp://ftp.trolltech.com/qt/source/qt-x11-free-3.3.5.tar.bz2
>
>
> I installed 2 toolchains:
>
> http://www.scratchbox.org/download/files/sbox-releases/0.9.8/tarball/scratchbox-toolchain-arm-glibc-0.9.8.5.tar.gz
>
> and
>
> http://www.scratchbox.org/download/files/sbox-releases/0.9.8/tarball/scratchbox-toolchain-arm-gcc3.4.cs-glibc-0.9.8.5.tar.gz
>
>
> With the first toolchain (gcc 3.3)  I can
> run Qt's
> ./configure  and then when I issue make
> the compilation starts and  libqt-3.3.5.so seems to get built successfully.
> Afterwards it tries to build  Qt designer and at some point  uic hangs
> indefinitely ,
> While the host box is relatively slow  VIA Nehemiah 1GHz , i686
> compatible  I let the make process run
> for over a day but it seems it gets in some kind of infinite loop.
>
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> 13373 sbox      35  10 84164 9232   76 R 84.9  4.1   2008:30 qemu-arm
>
> while compiling this file:
>
> /home/sbox/qt-3.3.5/qt-x11-free-3.3.5/bin/uic -L
> /home/sbox/qt-3.3.5/qt-x11-free-3.3.5/plugins pixmapfunction.ui -o
> pixmapfunction.h
>
> What could the cause be ?
> A bug in gcc that generates erratic code which makes the uic code loop
> forever or could it be a bug in qemu-arm which causes this loop ?
>
> I tried with the gcc-3.4 toolchain but in that case I cannot even run
> configure since it says missing libstdc++.
> Any idea how I can compile Qt using the gcc-3.4 toolchain ?
>
> Since Opera is a Qt app and is installed on the Nokia 770 I assume the
> Opera guys found a way to compile Qt.
>
> thanks in advance for your help,,
>
> cheers,
> Benno
>
>
> _______________________________________________
> maemo-developers mailing list
> maemo-developers at maemo.org
> https://maemo.org/mailman/listinfo/maemo-developers
>