(i notice commits to the git master, i'll try building again)
fresh new errors;
CXXLD qmcd
../tor/src/common/libor.a(compat.o): In function `drop_capabilities':
compat.c:(.text+0xed): undefined reference to `cap_get_proc'
compat.c:(.text+0x101): undefined reference to `cap_clear'
compat.c:(.text+0x116): undefined reference to `cap_set_flag'
compat.c:(.text+0x12e): undefined reference to `cap_set_flag'
compat.c:(.text+0x149): undefined reference to `cap_set_flag'
compat.c:(.text+0x151): undefined reference to `cap_set_proc'
compat.c:(.text+0x15b): undefined reference to `cap_free'
../tor/src/common/libor.a(compat.o): In function `have_capability_support':
compat.c:(.text+0x25f5): undefined reference to `cap_get_proc'
compat.c:(.text+0x2604): undefined reference to `cap_free'
collect2: error: ld returned 1 exit status
Makefile:3071: recipe for target 'qmcd' failed
make[2]: *** [qmcd] Error 1
make[2]: Leaving directory '/home/buzz/QMC/src'
Makefile:8040: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/home/buzz/QMC/src'
Makefile:603: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1