Problem with "make setup check" in Aix 4.3

[Fernando Barreto]

        Hi...
        I don't write english very well so, I'm sorry about any
mistakes...
 
        I'm having a problem here to compile de qmail on Aix 4.3... when I
 did "make setup check", it generate this error after do some compilation:
 ----
         ./compile dns.c
        dns.c:11: parse error before `int'
        make: 1254-004 The error code from the last command is 1.
 
 
        Stop.
 
 ----
        This line is a "extern int h_errno;" 
        What's the problem?? Anybody knowns?

        I have already created the users like in INSTALL.ids...
 
        Please... somebody can help me....
        Bye