Ralf:
One suggestion: for the unimplemented functions, rather than #if 0 to
effectively comment them out, actually comment them out so that if
people
grep for them the results show that they are not real.
That is, change, for example,
#if 0
/* Not implemented */
int _EXFUN(strcasecmp_l,(const char *, const char *, locale_t));
#endif
to something like
#if 0
/* Not implemented */
/* TBD int _EXFUN(strcasecmp_l,(const char *, const char *,
locale_t)); */
#endif
[where the #if 0 could be kept, but obviously would not be needed].