https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90337

--- Comment #1 from Fazal Majid <gcc at sentfrom dot com> ---
Another error, due to glob_t having gained some extra fields in newer versions
of Illumos (apparently based on BSD code contributed by Guide van Rossum).

Oracle Solaris:

typedef struct  glob_t  {
        size_t  gl_pathc;               /* Count of paths matched by pattern */
        char    **gl_pathv;             /* List of matched pathnames */
        size_t  gl_offs;                /* # of slots reserved in gl_pathv */
        /* following are internal to the implementation */
        char    **gl_pathp;             /* gl_pathv + gl_offs */
        int     gl_pathn;               /* # of elements allocated */
}       glob_t;

Illumos (see also:
https://github.com/illumos/illumos-gate/commit/a5229c74bcec7e2b136379c59a46f4b0717fd516)

typedef struct  glob_t  {
        /*
         * Members specified by POSIX
         */
        size_t  gl_pathc;       /* Total count of paths matched by pattern */
        char    **gl_pathv;     /* List of matched pathnames */
        size_t  gl_offs;        /* # of slots reserved in gl_pathv */

        /*
         * Internal-use members:
         *
         * NB: The next two members are carried in both the
         * libc backward compatibility wrapper functions and
         * the extended functions.
         */
        char    **gl_pathp;     /* gl_pathv + gl_offs */
        int     gl_pathn;       /* # of elements allocated */

        /*
         * Non-POSIX extensions
         *
         * NB: The following members are not carried in
         * the libc backward compatibility wrapper functions.
         */
        int     gl_matchc;      /* Count of paths matching pattern. */
        int     gl_flags;       /* Copy of flags parameter to glob. */
        struct  stat **gl_statv; /* Stat entries corresponding to gl_pathv */

        /*
         * Alternate filesystem access methods for glob; replacement
         * versions of closedir(3), readdir(3), opendir(3), stat(2)
         * and lstat(2).
         */
        void (*gl_closedir)(void *);
        struct dirent *(*gl_readdir)(void *);
        void *(*gl_opendir)(const char *);
        int (*gl_lstat)(const char *, struct stat *);
        int (*gl_stat)(const char *, struct stat *);
}       glob_t;

Patch p2.txt addresses this

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