am 41fb968c: am cadc8583: am bc0e7ee1: Merge "libc: add sys/signal.h for compatibility"

* commit '41fb968c4268d080b0be4493876672efc4a71e16':
  libc: add sys/signal.h for compatibility
diff --git a/libc/include/sys/signal.h b/libc/include/sys/signal.h
new file mode 100644
index 0000000..2e602da
--- /dev/null
+++ b/libc/include/sys/signal.h
@@ -0,0 +1 @@
+#include <signal.h>