Compiling Procmail in AIX 4.1.4

I'm trying to compile procmail in AIX 4.1.4 but i obtain the next
message:

> *******************************************************
> "_autotst.c", line 66.39: 1506-045 (S) Undeclared identifier d.
> "_autotst.c", line 66.44: 1506-046 (S) Syntax error.
> "_autotst.c", line 67.19: 1506-046 (S) Syntax error.
> make: 1254-004 El código de error del último mandato es 1.
>
>
> *******************************************************
> I suggest you take a look at the definition of LDLAGS*
> in the Makefile before you try make again.
> make: 1254-004 El código de error del último mandato es 1.
Do someone know the reason?