dummy.o(.text+0xa):dummy.c: undefined reference to `asprintf'
dummy.o(.text+0x108):dummy.c: undefined reference to `sigsetmask'
dummy.o(.text+0x124):dummy.c: undefined reference to `vasprintf'
dummy.o(.text+0x136):dummy.c: undefined reference to `sys_siglist'
dummy.o(.text+0x144):dummy.c: undefined reference to `psignal'
dummy.o(.text+0x14c):dummy.c: undefined reference to `basename'
dummy.o(.text+0x155):dummy.c: undefined reference to `on_exit'
dummy.o(.text+0x15d):dummy.c: undefined reference to `strsignal'
