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42 #if APR_HAVE_SIGACTION || defined(DOXYGEN)
44 #if defined(DARWIN) && !defined(__cplusplus) && !defined(_ANSI_SOURCE)
51 #define SIG_DFL (void (*)(int))0
52 #define SIG_IGN (void (*)(int))1
53 #define SIG_ERR (void (*)(int))-1
66 #if defined(SIG_IGN) && !defined(SIG_ERR)
67 #define SIG_ERR ((apr_sigfunc_t *) -1)
71 #define apr_signal(a, b) signal(a, b)