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

fusl/src/unistd/access.c

Index: fusl/src/unistd/access.c
diff --git a/fusl/src/unistd/access.c b/fusl/src/unistd/access.c
new file mode 100644
index 0000000000000000000000000000000000000000..d6eed6839822f32bebf333218b6e020d08bbbd28
--- /dev/null
+++ b/fusl/src/unistd/access.c
@@ -0,0 +1,12 @@
+#include <unistd.h>
+#include <fcntl.h>
+#include "syscall.h"
+
+int access(const char *filename, int amode)
+{
+#ifdef SYS_access
+	return syscall(SYS_access, filename, amode);
+#else
+	return syscall(SYS_faccessat, AT_FDCWD, filename, amode, 0);
+#endif
+}