pennmush version 1.8.2p8-1build1 failed to build on i386

pennmush version 1.8.2p8-1build1 failed to build on i386
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2406879

Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2406879/+files/buildlog_ubuntu-natty-i386.pennmush_1.8.2p8-1build1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 1246 lines into the build log:

/build/buildd/pennmush-1.8.2p8/build-pennmush/src/funmath.c:1164: undefined reference to `log'
/build/buildd/pennmush-1.8.2p8/build-pennmush/src/funmath.c:1164: undefined reference to `exp'
funmath.o: In function `frac':
/build/buildd/pennmush-1.8.2p8/build-pennmush/src/funmath.c:1209: undefined reference to `floor'
/build/buildd/pennmush-1.8.2p8/build-pennmush/src/funmath.c:1241: undefined reference to `floor'
/build/buildd/pennmush-1.8.2p8/build-pennmush/src/funmath.c:1216: undefined reference to `floor'
ptab.o: In function `ptab_stats':
/build/buildd/pennmush-1.8.2p8/build-pennmush/src/ptab.c:362: undefined reference to `log'
collect2: ld returned 1 exit status
make[2]: *** [netmud] Error 1
make[2]: Leaving directory `/build/buildd/pennmush-1.8.2p8/build-pennmush/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/build/buildd/pennmush-1.8.2p8/build-pennmush'
make: *** [build-pennmush] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110408-1816
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/pennmush-1.8.2p8