configure warning from 3.81 on sparc-sun-sunos4.1.4

[Volker Borchert]

configure: WARNING: sys/resource.h: present but cannot be compiled
configure: WARNING: sys/resource.h:     check for missing prerequisite headers?
configure: WARNING: sys/resource.h: see the Autoconf documentation
configure: WARNING: sys/resource.h:     section "Present But Cannot Be Compiled"
configure: WARNING: sys/resource.h: proceeding with the preprocessor's result
configure: WARNING: sys/resource.h: in the future, the compiler will take 
precedence
configure: WARNING:     ## ------------------------------- ##
configure: WARNING:     ## Report this to address@hidden ##
configure: WARNING:     ## ------------------------------- ##



The autoconf-2.63 documentation only hints that there might be some
other header required along with sys/resource.h, but the section on
"Particular header" does not elaborate on it.


Regards,
        V. Borchert