Re: fails to compile with undefined symbol (FP_PLUS_INF)

"Riccardo Mottola" <multix@gmail.com> writes:
> our faithful grep tool says:
> bash-2.01$ grep FP_PLUS_INF *
> float.h:#define FP_PLUS_INF       4
> bash-2.01$ grep FP_MINUS_INF *
> float.h:#define FP_MINUS_INF      5

These must be within #if's that prevent them from being seen ...
you'll need to figure out what exactly.  On HPUX we use
    CPPFLAGS="-D_XOPEN_SOURCE_EXTENDED"
to gain access to some symbols we need, and I'll bet something
similar is needed on AIX.

            regards, tom lane