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-rw-r--r--libguile/threads.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/threads.c b/libguile/threads.c
index 82b39f82d..1527e01d1 100644
--- a/libguile/threads.c
+++ b/libguile/threads.c
@@ -661,7 +661,7 @@ get_thread_stack_base ()
}
}
-#elif HAVE_PTHREAD_GET_STACKADDR_NP
+#elif defined HAVE_PTHREAD_GET_STACKADDR_NP
/* This method for MacOS X.
It'd be nice if there was some documentation on pthread_get_stackaddr_np,
but as of 2006 there's nothing obvious at apple.com. */