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-rw-r--r--thread.h19
1 files changed, 13 insertions, 6 deletions
diff --git a/thread.h b/thread.h
index 912288587e..b14907abd3 100644
--- a/thread.h
+++ b/thread.h
@@ -249,15 +249,22 @@
} STMT_END
#endif /* JOIN */
-#ifndef PERL_GET_CONTEXT
-# if (defined(__ALPHA) && (__VMS_VER >= 70000000)) || (defined(__alpha) && defined(__osf__))
/* Use an unchecked fetch of thread-specific data instead of a checked one.
* It would fail if the key were bogus, but if the key were bogus then
* Really Bad Things would be happening anyway. --dan */
-# define PERL_GET_CONTEXT pthread_unchecked_getspecific_np(PL_thr_key)
-# else
-# define PERL_GET_CONTEXT pthread_getspecific(PL_thr_key)
-# endif
+#if (defined(__ALPHA) && (__VMS_VER >= 70000000)) ||
+ (defined(__alpha) && defined(__osf__)) /* Available only on >= 4.0 */
+# define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
+#endif
+
+#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
+# define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
+#else
+# define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
+#endif
+
+#ifndef PERL_GET_CONTEXT
+# define PERL_GET_CONTEXT PTHREAD_GETSPECIFIC(PL_thr_key)
#endif
#ifndef PERL_SET_CONTEXT