[fusl] Update fusl

fusl/src/ldso/dl_iterate_phdr.c

-#ifndef SHARED
-
 #include <elf.h>
 #include <link.h>
 #include "libc.h"
 
 #define AUX_CNT 38
 
-int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
+static int static_dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
 {
         unsigned char *p;
         ElfW(Phdr) *phdr, *tls_phdr=0;
         size_t base = 0;
         size_t n;
         struct dl_phdr_info info;
         size_t i, aux[AUX_CNT];
 
         for (i=0; libc.auxv[i]; i+=2)
                 if (libc.auxv[i]<AUX_CNT) aux[libc.auxv[i]] = libc.auxv[i+1];
@@ skipping 13 matching lines @@
         info.dlpi_subs  = 0;
         if (tls_phdr) {
                 info.dlpi_tls_modid = 1;
                 info.dlpi_tls_data = (void *)(base + tls_phdr->p_vaddr);
         } else {
                 info.dlpi_tls_modid = 0;
                 info.dlpi_tls_data = 0;
         }
         return (callback)(&info, sizeof (info), data);
 }
-#endif
+
+weak_alias(static_dl_iterate_phdr, dl_iterate_phdr);