[project @ 2003-06-27 18:28:31 by sof]

[ghc-hetmet.git] / ghc / rts / Select.c

diff --git a/ghc/rts/Select.c b/ghc/rts/Select.c
index da0e124..677fdd2 100644 (file)
--- a/ghc/rts/Select.c
+++ b/ghc/rts/Select.c
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: Select.c,v 1.27 2003/03/29 00:00:41 sof Exp $
+ * $Id: Select.c,v 1.29 2003/06/26 12:22:59 stolz Exp $
  *
  * (c) The GHC Team 1995-2002
  *
@@ -31,6 +31,10 @@
 #include <errno.h>
 #include <string.h>
 
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
 /* last timestamp */
 nat timestamp = 0;
 
@@ -232,12 +236,14 @@ awaitEvent(rtsBool wait)
           * we could block for a long time before the signal is
           * serviced.
           */
+#if defined(RTS_USER_SIGNALS)
          if (signals_pending()) {
              RELEASE_LOCK(&sched_mutex); /* ToDo: kill */
              startSignalHandlers();
              ACQUIRE_LOCK(&sched_mutex);
              return; /* still hold the lock */
          }
+#endif
 
          /* we were interrupted, return to the scheduler immediately.
           */