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Added a check in configure that verifies if <signal.h> is available,

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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.
This commit is contained in:
Yang Tse 2006-11-22 18:41:34 +00:00
parent ab160ef445
commit 73226415fc
6 changed files with 108 additions and 0 deletions
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10
lib/setup_once.h
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@ -130,5 +130,15 @@
#define ISPRINT(x) (isprint((int) ((unsigned char)x)))
/*
* Typedef to 'int' if sig_atomic_t is not an available 'typedefed' type.
*/
#ifndef HAVE_SIG_ATOMIC_T
typedef int sig_atomic_t;
#define HAVE_SIG_ATOMIC_T
#endif
#endif /* __SETUP_ONCE_H */