For Mac OS X Tiger - no SIGIO, SIGWINCH, or WCOREDUMP.
diff --git a/src/lib9/await.c b/src/lib9/await.c
index 7d0ca91..81ac0b3 100644
--- a/src/lib9/await.c
+++ b/src/lib9/await.c
@@ -8,6 +8,10 @@
#include <sys/resource.h>
#include <sys/wait.h>
+#ifndef WCOREDUMP /* not on Mac OS X Tiger */
+#define WCOREDUMP(status) 0
+#endif
+
static struct {
int sig;
char *str;
@@ -34,12 +38,16 @@
SIGCHLD, "sys: child",
SIGTTIN, "sys: ttin",
SIGTTOU, "sys: ttou",
+#ifdef SIGIO /* not on Mac OS X Tiger */
SIGIO, "sys: i/o possible on fd",
+#endif
SIGXCPU, "sys: cpu time limit exceeded",
SIGXFSZ, "sys: file size limit exceeded",
SIGVTALRM, "sys: virtual time alarm",
SIGPROF, "sys: profiling timer alarm",
+#ifdef SIGWINCH /* not on Mac OS X Tiger */
SIGWINCH, "sys: window size change",
+#endif
#ifdef SIGINFO
SIGINFO, "sys: status request",
#endif
