port_adaptor breaking builders / warnings / fgets return val ignored

http://builds.hq.northscale.net:8010/builders/wallace_ubuntu_9.04_64/builds/301/steps/compile/logs/stdio

/bin/bash ./libtool --tag=CXX --mode=link g++ -pipe -O3 -Werror -pedantic -Wall -Wundef -Wshadow -fdiagnostics-show-option -fvisibility=hidden -Wformat -fno-strict-aliasing -Wno-strict-aliasing -Wextra -Woverloaded-virtual -Wnon-virtual-dtor -Wctor-dtor-privacy -Wno-long-long -Wmissing-declarations -Wno-redundant-decls -std=gnu++0x -o vbucketmigrator src/binarymessagepipe.o src/sockstream.o src/vbucketmigrator.o src/mutex_pthread.o -L/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/grommix/libevent-1.4.13-stable/lib -levent -lnsl -lrt -lresolv -L/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/wallace/./components/tmp/libvbucket-install/lib -lvbucket -L/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/grommix/libmemcached-0.40-revno839/lib -L/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/grommix/libmemcached-0.40-revno839/lib -lhashkit -lm -lsasl2 -lpthread
libtool: link: g++ -pipe -O3 -Werror -pedantic -Wall -Wundef -Wshadow -fdiagnostics-show-option -fvisibility=hidden -Wformat -fno-strict-aliasing -Wno-strict-aliasing -Wextra -Woverloaded-virtual -Wnon-virtual-dtor -Wctor-dtor-privacy -Wno-long-long -Wmissing-declarations -Wno-redundant-decls -std=gnu++0x -o vbucketmigrator src/binarymessagepipe.o src/sockstream.o src/vbucketmigrator.o src/mutex_pthread.o -L/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/grommix/libevent-1.4.13-stable/lib /var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/grommix/libevent-1.4.13-stable/lib/libevent.a -lnsl -lrt -L/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/wallace/./components/tmp/libvbucket-install/lib /var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/wallace/./components/tmp/libvbucket-install/lib/libvbucket.a -L/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/grommix/libmemcached-0.40-revno839/lib /var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/grommix/libmemcached-0.40-revno839/lib/libhashkit.a -lm /usr/lib/libsasl2.so -ldl -lresolv -lpthread -pthread
depbase=`echo src/port_adaptor.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I. -ggdb3 -I../../repo_memcached/memcached/include -I/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/grommix/libevent-1.4.13-stable/include -I/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/wallace/./components/tmp/libvbucket-install/include -I/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/grommix/libmemcached-0.40-revno839/include -pipe -O3 -Werror -pedantic -Wall -Wundef -Wshadow -fdiagnostics-show-option -fvisibility=hidden -Wformat -fno-strict-aliasing -Wno-strict-aliasing -Wextra -Wstrict-prototypes -Wmissing-prototypes -Wredundant-decls -Wmissing-declarations -Wcast-align -Wlogical-op -MT src/port_adaptor.o -MD -MP -MF $depbase.Tpo -c -o src/port_adaptor.o src/port_adaptor.c &&\
mv -f $depbase.Tpo $depbase.Po
cc1: warnings being treated as errors
src/port_adaptor.c: In function ‘wait_for_process’:
src/port_adaptor.c:39: error: ignoring return value of ‘fgets’, declared with attribute warn_unused_result
make[2]: *** [src/port_adaptor.o] Error 1
make[2]: Leaving directory `/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/wallace/components/tmp/repo_vbucketmigrator/vbucketmigrator'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/var/lib/buildbot/ubuntu_9.04_32/wallace_ubuntu_9.04_32/wallace/components/tmp/repo_vbucketmigrator/vbucketmigrator'
rake aborted!
ERROR: cmd failed: make