#define _POSIX_REALTIME_SIGNALS causes parse error in sys/signal.h

[Attila Szegedi]

When I try to compile a sample .c file containing only these two lines:

#define _POSIX_REALTIME_SIGNALS
#include <signal.h>

I get these parse errors:

$ gcc sample.c
In file included from /usr/include/signal.h:5,
                 from sample.c:2:
/usr/include/sys/signal.h:179: parse error before "siginfo_t"
/usr/include/sys/signal.h:182: parse error before "siginfo_t"

Lines 179-182 in signal.h read:
int _EXFUN(sigwaitinfo, (const sigset_t *set, siginfo_t *info));
int _EXFUN(sigtimedwait,
  (const sigset_t *set, siginfo_t *info, const struct timespec  *timeout)
);

Anybody sees what's wrong? I stared long and hard at signal.h but see
nothing wrong.

Cheers,
  Attila.



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