relocatable-prog: Use wrapper-free installation on Mac OS X, take 2. This approach supports relocatable installation of shared libraries which depend on other shared libraries from the same package. * m4/relocatable.m4 (gl_RELOCATABLE_BODY): Determine use_macos_tools. If use_macos_tools is true, use reloc-ldflags and set LIBTOOL to be a wrapper around the original LIBTOOL. * build-aux/reloc-ldflags: Add support for Mac OS X, which uses the token '@loader_path' instead of '$ORIGIN'. * build-aux/libtool-reloc: New file. * modules/relocatable-prog (Files): Add it. * doc/relocatable-maint.texi (Supporting Relocation): Update to match the recent changes. Document the need to set the *_LDFLAGS of libraries. RELOCATABLE_LIBRARY_PATH and RELOCATABLE_CONFIG_H_DIR should be set in Makefile.am, not in configure.ac.

#ifndef HASH_TRIPLE_H
#define HASH_TRIPLE_H

#include <sys/types.h>
#include <sys/stat.h>
#include <stdbool.h>

/* Describe a just-created or just-renamed destination file.  */
struct F_triple
{
  char *name;
  ino_t st_ino;
  dev_t st_dev;
};

extern size_t triple_hash (void const *x, size_t table_size) _GL_ATTRIBUTE_PURE;
extern size_t triple_hash_no_name (void const *x, size_t table_size)
  _GL_ATTRIBUTE_PURE;
extern bool triple_compare (void const *x, void const *y);
extern bool triple_compare_ino_str (void const *x, void const *y)
  _GL_ATTRIBUTE_PURE;
extern void triple_free (void *x);

#endif