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authorYang Tse <yangsita@gmail.com>2006-11-22 18:41:34 +0000
committerYang Tse <yangsita@gmail.com>2006-11-22 18:41:34 +0000
commit73226415fc51cdfbfa730eae80119411d65dd124 (patch)
treef73b524b831d846a98d09e6ff015746b76651392 /ares/setup_once.h
parentab160ef445433f8d4767fafd2efa5361835f8b71 (diff)
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.
Diffstat (limited to 'ares/setup_once.h')
-rw-r--r--ares/setup_once.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/ares/setup_once.h b/ares/setup_once.h
index 224ab692a..23d75ca0d 100644
--- a/ares/setup_once.h
+++ b/ares/setup_once.h
@@ -123,5 +123,15 @@
#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 */