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-rw-r--r--os2/alarm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/os2/alarm.h b/os2/alarm.h
new file mode 100644
index 0000000000..b5fe69445b
--- /dev/null
+++ b/os2/alarm.h
@@ -0,0 +1,2 @@
+#define SIGALRM SIGUSR1
+unsigned alarm(unsigned);