> Let's step back for a minute once again. On your 10.20, system, go and look at
/usr/include/netdb.h . Find the section where it defines "h_errno"
> which is a macro that will be defined to either a function call or an external
variable depending on if the macro _REENTRANT is defined at compile
> time. (On 11.11, it is right at the end of the file).
> What do the definitions for "h_errno" look like on 10.20?
The following text in the netdb.h file is what references h_errno:
/*
* Error return codes from gethostbyname() and gethostbyaddr()
* (left in extern int h_errno).
#ifdef _XOPEN_SOURCE EXTENDED
extern int h_errno;
#endif
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