# ./build.sh -m evbarm64-el -O ../obj tools
<<stuff>>
ld: job.o: in function `JobPassSig_suspend':
job.c:(.text+0xd04): undefined reference to `__sigaction_siginfo'
job.c:(.text+0xd04): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__sigaction_siginfo'
ld: job.c:(.text+0xd38): undefined reference to `__sigaction_siginfo'
job.c:(.text+0xd38): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__sigaction_siginfo'
ld: util.o: in function `bmake_signal':
util.c:(.text+0x2c): undefined reference to `__sigaction_siginfo'
util.c:(.text+0x2c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__sigaction_siginfo'
ERROR: Build of nbmake failed
*** BUILD ABORTED ***