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

fusl/src/stdio/remove.c

Index: fusl/src/stdio/remove.c
diff --git a/fusl/src/stdio/remove.c b/fusl/src/stdio/remove.c
new file mode 100644
index 0000000000000000000000000000000000000000..942e301a4c035f491c6b0ffef47b8e1572312678
--- /dev/null
+++ b/fusl/src/stdio/remove.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include "syscall.h"
+
+int remove(const char *path)
+{
+#ifdef SYS_unlink
+	int r = __syscall(SYS_unlink, path);
+#else
+	int r = __syscall(SYS_unlinkat, AT_FDCWD, path, 0);
+#endif
+#ifdef SYS_rmdir
+	if (r==-EISDIR) r = __syscall(SYS_rmdir, path);
+#else
+	if (r==-EISDIR) r = __syscall(SYS_unlinkat, AT_FDCWD, path, AT_REMOVEDIR);
+#endif
+	return __syscall_ret(r);
+}