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

fusl/src/stat/__xstat.c

+#include <sys/stat.h>
+#include "libc.h"
+
+int __fxstat(int ver, int fd, struct stat *buf)
+{
+        return fstat(fd, buf);
+}
+
+int __fxstatat(int ver, int fd, const char *path, struct stat *buf, int flag)
+{
+        return fstatat(fd, path, buf, flag);
+}
+
+int __lxstat(int ver, const char *path, struct stat *buf)
+{
+        return lstat(path, buf);
+}
+
+int __xstat(int ver, const char *path, struct stat *buf)
+{
+        return stat(path, buf);
+}
+
+LFS64(__fxstat);
+LFS64(__fxstatat);
+LFS64(__lxstat);
+LFS64(__xstat);
+
+int __xmknod(int ver, const char *path, mode_t mode, dev_t *dev)
+{
+        return mknod(path, mode, *dev);
+}
+
+int __xmknodat(int ver, int fd, const char *path, mode_t mode, dev_t *dev)
+{
+        return mknodat(fd, path, mode, *dev);
+}