git master (acb43c073) doesn't build on debian squeeze
CC src/ext/eventdns.o
cc1: warnings being treated as errors
src/ext/eventdns.c: In function 'nameserver_probe_failed':
src/ext/eventdns.c:537: error: implicit declaration of function 'tor_log'
src/ext/eventdns.c:537: error: nested extern declaration of 'tor_log'
make[1]: *** [src/ext/eventdns.o] Error 1
make[1]: Leaving directory `/home/tord/git'
make: *** [all] Error 2
Looks related to #7599 (moved).