avida version 2.0b7-4.2ubuntu1 failed to build on i386

avida version 2.0b7-4.2ubuntu1 failed to build on i386
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2388681

Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2388681/+files/buildlog_ubuntu-natty-i386.avida_2.0b7-4.2ubuntu1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 2339 lines into the build log:

g++ -c -pipe -g -I. -Wall -W -O2 -D_REENTRANT -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/share/qt3/mkspecs/default -I. -I/usr/include/qt3 -I.. -I../cpu -I../event -I../main -I../third-party/trio-1.9 -I../tools -I../support -I../../doc -I. -I/usr/include/qt3 -Imoc/ -o objs/n_orig_instruction_pixmapstructs.o n_orig_instruction_pixmapstructs.cc
g++ -c -pipe -g -I. -Wall -W -O2 -D_REENTRANT -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/share/qt3/mkspecs/default -I. -I/usr/include/qt3 -I.. -I../cpu -I../event -I../main -I../third-party/trio-1.9 -I../tools -I../support -I../../doc -I. -I/usr/include/qt3 -Imoc/ -o objs/n_orig_instruction_scrollview.o n_orig_instruction_scrollview.cc
In file included from n_orig_instruction_scrollview.cc:27:0:
../tools/message_display.hh:39:16: warning: unused parameter 'final_msg'
n_orig_instruction_scrollview.cc:59:1: warning: unused parameter 'x'
n_orig_instruction_scrollview.cc:59:1: warning: unused parameter 'y'
n_orig_instruction_scrollview.cc: In member function 'virtual void N_Instruction_ScrollView::drawContents(QPainter*, int, int, int, int)':
n_orig_instruction_scrollview.cc:102:35: warning: comparison between signed and unsigned integer expressions
n_orig_instruction_scrollview.cc: At global scope:
n_orig_instruction_scrollview.cc:297:1: warning: unused parameter 'e'
n_orig_instruction_scrollview.cc: In member function 'void N_Instruction_ScrollView::drawButtonFrame(int, int, bool)':
n_orig_instruction_scrollview.cc:416:50: error: cannot call constructor 'QStyleOption::QStyleOption' directly
n_orig_instruction_scrollview.cc:416:50: error: for a function-style cast, remove the redundant '::QStyleOption'
make[5]: *** [objs/n_orig_instruction_scrollview.o] Error 1
make[5]: Leaving directory `/build/buildd/avida-2.0b7/source/qt-viewer'
make[4]: *** [qt-viewer] Error 2
make[4]: Leaving directory `/build/buildd/avida-2.0b7/source/qt-viewer'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/build/buildd/avida-2.0b7/source/qt-viewer'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/build/buildd/avida-2.0b7/source'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/build/buildd/avida-2.0b7'
make: *** [build-stamp] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110403-1009
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/avida-2.0b7