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

fusl/include/link.h

Index: fusl/include/link.h
diff --git a/fusl/include/link.h b/fusl/include/link.h
new file mode 100644
index 0000000000000000000000000000000000000000..9349cddd5da7de4f7fa3e2abbda8cdad07d47151
--- /dev/null
+++ b/fusl/include/link.h
@@ -0,0 +1,54 @@
+#ifndef _LINK_H
+#define _LINK_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <elf.h>
+#define __NEED_size_t
+#define __NEED_uint32_t
+#include <bits/alltypes.h>
+
+#if UINTPTR_MAX > 0xffffffff
+#define ElfW(type) Elf64_ ## type
+#else
+#define ElfW(type) Elf32_ ## type
+#endif
+
+/* this is the same everywhere except alpha and s390 */
+typedef uint32_t Elf_Symndx;
+
+struct dl_phdr_info {
+	ElfW(Addr) dlpi_addr;
+	const char *dlpi_name;
+	const ElfW(Phdr) *dlpi_phdr;
+	ElfW(Half) dlpi_phnum;
+	unsigned long long int dlpi_adds;
+	unsigned long long int dlpi_subs;
+	size_t dlpi_tls_modid;
+	void *dlpi_tls_data;
+};
+
+struct link_map {
+	ElfW(Addr) l_addr;
+	char *l_name;
+	ElfW(Dyn) *l_ld;
+	struct link_map *l_next, *l_prev;
+};
+
+struct r_debug {
+	int r_version;
+	struct link_map *r_map;
+	ElfW(Addr) r_brk;
+	enum { RT_CONSISTENT, RT_ADD, RT_DELETE } r_state;
+	ElfW(Addr) r_ldbase;
+};
+
+int dl_iterate_phdr(int (*)(struct dl_phdr_info *, size_t, void *), void *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif