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

fusl/src/stat/chmod.c

Index: fusl/src/stat/chmod.c
diff --git a/fusl/src/stat/chmod.c b/fusl/src/stat/chmod.c
new file mode 100644
index 0000000000000000000000000000000000000000..d4f53c564e14701ea360a7159037c39838266d9f
--- /dev/null
+++ b/fusl/src/stat/chmod.c
@@ -0,0 +1,12 @@
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "syscall.h"
+
+int chmod(const char *path, mode_t mode)
+{
+#ifdef SYS_chmod
+	return syscall(SYS_chmod, path, mode);
+#else
+	return syscall(SYS_fchmodat, AT_FDCWD, path, mode);
+#endif
+}