Add shared library version of libcli_main

ports/nacl-spawn/elf_reader.cc

 // Copyright (c) 2014 The Native Client Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "elf_reader.h"
 
 #include <assert.h>
 #include <elf.h>
 #include <errno.h>
 #include <stdarg.h>
@@ skipping 23 matching lines @@
   ScopedFile fp(fopen(filename, "rb"));
   if (!fp.get()) {
     PrintError("failed to open file");
     return;
   }
 
   std::vector<Elf64_Phdr> phdrs;
   if (!ReadHeaders(fp.get(), &phdrs))
     return;
 
-  bool dynamic_found = false;
   Elf64_Addr straddr = 0;
   size_t strsize = 0;
   std::vector<int> neededs;
   if (!ReadDynamic(fp.get(), phdrs, &straddr, &strsize, &neededs))
     return;
 
   std::string strtab;
   if (!ReadStrtab(fp.get(), phdrs, straddr, strsize, &strtab))
     return;
 
@@ skipping 214 matching lines @@
     return 1;
 
   for (size_t i = 0; i < elf_reader.neededs().size(); i++) {
     if (i)
       printf(" ");
     printf("%s", elf_reader.neededs()[i].c_str());
   }
 }
 
 #endif  // DEFINE_ELF_READER_MAIN