signal_handler changes

[Martin Nilsson (Opera Mini - AFK!) @ Pike (-) developers forum]

I get (build dir deleted and reconfigured)

Compiling signal_handler.c
/home/nilsson/pike/src/signal_handler.c: In function ‘check_signals’:
/home/nilsson/pike/src/signal_handler.c:858:14: error: invalid storage
class for function ‘signame’
/home/nilsson/pike/src/signal_handler.c:858:1: warning: ISO C90
forbids mixed declarations and code [-Wdeclaration-after-statement]
/home/nilsson/pike/src/signal_handler.c:870:12: error: invalid storage
class for function ‘signum’
/home/nilsson/pike/src/signal_handler.c:908:13: error: invalid storage
class for function ‘f_signal’
/home/nilsson/pike/src/signal_handler.c:1009:13: error: invalid
storage class for function ‘f_signum’
/home/nilsson/pike/src/signal_handler.c:1030:13: error: invalid
storage class for function ‘f_signame’
[etc]