gnulib 'unistd.h' bug?? for the symbol 'fchdir' (build 3.3.51 on MinGW)

[Tatsuro MATSUOKA]

Hello

In compiling file-ops.cc error concerning to  'fchdir' occurred.

../libgnu/unistd.h:664:1: error: 'fchdir' was not declared in this scope

In /libgnu/unistd.h, there found
_GL_FUNCDECL_RPL (fchdir, int, (int /*fd*/));
_GL_CXXALIAS_RPL (fchdir, int, (int /*fd*/));

However in fchdir.c fchdir in gnulib is described as
int
fchdir (int fd)
{
  const char *name = _gl_directory_name (fd);
  return name ? chdir (name) : -1;
}

The 'fchdir' but not 'rpl_fchdi' is used.

I replaced 
_GL_FUNCDECL_RPL (fchdir, int, (int /*fd*/));
_GL_CXXALIAS_RPL (fchdir, int, (int /*fd*/));
with
_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/));

The error was disappeared and dir-ops.cc was complied successfully.


 

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