Bill, 

Thanks for the help.  Results of test below. 
> > In file included from xmltok.c:6:
> > xmltok/xmldef.h:6:20: string.h: No such file or directory
> > xmltok/xmldef.h:22:20: stdlib.h: No such file or directory
> > make[3]: *** [xmltok.lo] Error 1
> 
> Yikes.  Hard to imaine that configure would run without an 
> error and then you don't have those headers.
> 
> Can you do this on your system?
> 
> moseley@bumby:~$ cat t.c
> #include <stdio.h>
> #include <string.h>
> int main( void )
> {
>    printf("hello world\n"); 
>    return 0;
> }
> 
> moseley@bumby:~$ gcc -Wall t.c
> 
> BTW -- pr1 is going to be replaced very soon.  Today if I'm 
> very lucky in my work.  There a a few known bugs in that version. 

And here's what I get:
jailshell-2.05a$ gcc -Wall t.c
t.c:1:19: stdio.h: No such file or directory
t.c:2:20: string.h: No such file or directory