videotrans version 1.6.0-0ubuntu5 failed to build in oneiric
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2714328
Details about the rebuild:
http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20110816-oneiric.html
Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110816/+build/2714328/+files/buildlog_ubuntu-oneiric-amd64.videotrans_1.6.0-0ubuntu5_FAILEDTOBUILD.txt.gz
This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 1054 lines into the build log:
Entering directory src
make[2]: Entering directory `/build/buildd/videotrans-1.6.0/src'
gcc -Wall -g -ansi -pedantic -Wall -o zoomcalc.o -c zoomcalc.c
gcc -o zoomcalc -g -lm zoomcalc.o
zoomcalc.o: In function `main':
/build/buildd/videotrans-1.6.0/src/zoomcalc.c:435: undefined reference to `floor'
/build/buildd/videotrans-1.6.0/src/zoomcalc.c:438: undefined reference to `floor'
collect2: ld returned 1 exit status
make[2]: *** [zoomcalc] Error 1
make[2]: Leaving directory `/build/buildd/videotrans-1.6.0/src'
make[1]: *** [all] Error 1
make[1]: Leaving directory `/build/buildd/videotrans-1.6.0'
dh_auto_build: make -j1 returned exit code 2
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110824-0354
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/videotrans-1.6.0
I don't really get why this error occurs? floor() is supposed to be a function from the math library, and the math library is linked in using -lm. This may fail if only a static version of the math library is available, but I'm assuming that there is a dynamic version of this library available...