[webkit-qt] Building QtWebkit 2.1.1 on RHEL 6

[James Wettenhall]

Hi

Thanks for the advice.  I had a quick attempt at reusing the SRPM's
spec file, but it didn't work for me.  I may have done something
stupid.  I'll try again later.

BTW, I'm on 64-bit CentOS 6.3.

I did succeed in building QtWebKit from qt-everywhere-opensource, using a simple

./configure --prefix
make
make install

So that solution is perfectly acceptable to me.

I isolated the problem with my original attempt at building it.  The
object files generated from WebKit/qt/Api/*.cpp (e.g. qwebpage.o) were
successfully being generated in
WebKitBuild/Release/WebCore/obj/release/
and they were correctly being included in the linking command in
WebKitBuild/Release/WebCore/Makefile

But most of the symbols from the WebKit/qt/Api/ object files appeared
to be lost in libQtWebKit.so.  I wrote a Hello World program using the
QWebPage class.  When I linked it against qwebpage.o, it had no
problem finding the QWebPage symbols, but it faced undefined symbol
errors about QWebPage references when I linked it against the
libQtWebKit.so I had built.

Removing the --gc-sections option from WebCore/WebCore.pro resulted in
a lot more QWebPage symbols being included in libQtWebKit.so, as
reported by nm or objdump -tT, but I still got undefined symbol errors
when I tried linking against it.

I ran

objdump -tT libQtWebKit.so | grep QWebPage | wc -l

on the EPEL version which gave 128, and on my build with --gc-sections
which gave 2, and on my build without --gc-sections which gave 226.

Cheers,
James


On 10/03/2013, at 11:46 PM, "Jan Kundrát" <jkt at flaska.net> wrote:

> On Friday, 8 March 2013 09:42:48 CEST, James Wettenhall wrote:
>> I need to install an application with a dependency on QtWebkit on a RHEL 6 system which has a no-EPEL policy, so I can't use EPEL's qtwebkit 2.1.1 package.
>
> Reusing the .spec file worked well enough for me. I had to build qtmobility and qtwebkit, the packages are at [1].
>
> With kind regards,
> Jan
>
> [1] https://build.opensuse.org/package/show?package=qtwebkit&project=home%3Ajkt-gentoo%3Atrojita
> [2] https://build.opensuse.org/package/show?package=qt-mobility&project=home%3Ajkt-gentoo%3Atrojita
>
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