boinc-app-milkyway version 0.18d-1 failed to build on i386

boinc-app-milkyway version 0.18d-1 failed to build on i386
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110413/+buildjob/2446531

Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110413/+buildjob/2446531/+files/buildlog_ubuntu-natty-i386.boinc-app-milkyway_0.18d-1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 929 lines into the build log:

../util/io_util.c:76:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
../util/io_util.c:85:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
../util/io_util.c:87:20: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
../util/io_util.c: In function 'int read_double_array(FILE*, const char*, double**)':
../util/io_util.c:57:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
../util/io_util.c:58:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
../util/io_util.c:67:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
../util/io_util.c:69:20: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
g++ -DGMLE_BOINC -DBOINC_APP_VERSION=0.18 -DBOINC_APP_NAME='"milkyway"' -g -O2 -ftree-vectorize -funroll-loops -I/usr/include/BOINC -m32 -Wall -x c++ -c ../util/settings.c -o ../util/settings.o
g++ -Wl --export_dynamic -L/usr/X11R6/lib -DGMLE_BOINC -DBOINC_APP_VERSION=0.18 -DBOINC_APP_NAME='"milkyway"' -g -O2 -ftree-vectorize -funroll-loops -I/usr/include/BOINC -m32 -o milkyway ../astronomy/boinc_astronomy.o ../astronomy/atSurveyGeometry.o ../astronomy/numericalIntegration.o ../astronomy/parameters.o ../astronomy/probability.o ../astronomy/stCoords.o ../astronomy/stCnum.o ../astronomy/stMath.o ../astronomy/stVector.o ../astronomy/star_points.o ../astronomy/evaluation_optimized.o ../astronomy/evaluation_state.o ../searches/search_parameters.o ../util/io_util.o ../util/settings.o -lm -lboinc_api -lboinc -pthread
g++: error: unrecognized option '--export_dynamic'
make[1]: *** [milkyway] Error 1
make[1]: Leaving directory `/build/buildd/boinc-app-milkyway-0.18d/bin'
make: *** [build-stamp] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110419-0638
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/boinc-app-milkyway-0.18d