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init: do not fail build if SIGPWR is not defined

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Apparently, some *BSD variants (and maybe some other OSes) does not define
SIGPWR signal.  So since commit 760fc6debc, busybox fails to build on
such platforms.  Fix this.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Michael Tokarev 2014-01-29 12:40:32 +04:00 committed by Denys Vlasenko
parent b664f740d9
commit 922fdf6527
1 changed files with 2 additions and 0 deletions
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init/init.c
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@ -1135,7 +1135,9 @@ int init_main(int argc UNUSED_PARAM, char **argv)
struct sigaction sa;
bb_signals(0
#ifdef SIGPWR
+ (1 << SIGPWR) /* halt */
#endif
+ (1 << SIGUSR1) /* halt */
+ (1 << SIGTERM) /* reboot */
+ (1 << SIGUSR2) /* poweroff */