Added a check in configure that verifies if <signal.h> is available,
defining HAVE_SIGNAL_H if the header is available. Added a check in configure that tests if the sig_atomic_t type is available, defining HAVE_SIG_ATOMIC_T if it is available. Providing a suitable default in setup_once.h if not available. Added a check in configure that tests if the sig_atomic_t type is already defined as volatile, defining HAVE_SIG_ATOMIC_T_VOLATILE if it is available and already defined as volatile.
parent
ab160ef4
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