Add a "fork" of musl as //fusl.

fusl/src/select/poll.c

Index: fusl/src/select/poll.c
diff --git a/fusl/src/select/poll.c b/fusl/src/select/poll.c
new file mode 100644
index 0000000000000000000000000000000000000000..9e0bcbd804f329031e6040b566290eb96e8b802a
--- /dev/null
+++ b/fusl/src/select/poll.c
@@ -0,0 +1,16 @@
+#include <poll.h>
+#include <time.h>
+#include <signal.h>
+#include "syscall.h"
+#include "libc.h"
+
+int poll(struct pollfd *fds, nfds_t n, int timeout)
+{
+#ifdef SYS_poll
+	return syscall_cp(SYS_poll, fds, n, timeout);
+#else
+	return syscall_cp(SYS_ppoll, fds, n, timeout>=0 ?
+		&((struct timespec){ .tv_sec = timeout/1000,
+		.tv_nsec = timeout%1000*1000000 }) : 0, 0, _NSIG/8);
+#endif
+}