Header file "dirent.h" poses problems for goto-cc

[metamaterialsuit]

CBMC version: 6.1.1-2
Operating system: Linux
Exact command line `resulting in the issue: goto-cc -o file.o file.c
What behaviour did you expect: A goto program to be built
What happened instead: The file contains a <dirent.h> include. goto-cc reports:
"error: function symbol 'readdir' redefined with different type:"
"Original: struct dirent * (DIR *)"
"New: struct dirent64 * (DIR *)"
"extern struct dirent64 *readdir64(DIR *__dirp) __nonnull ((1));"

I believe this is happening because internally dirent.h includes <bits/dirent.h> which defines a struct dirent and can conditionally swap it to a dirent64 if the appropriate define is available. Or at least thats what I think is happening, hence the redefinition error. Unfortunately I have no idea how to fix this because it is a system header.

In any case, would appreciate some help.

-M