1.3.1_02 Hotspot build fails on x86 with error

Compiling /net/nightsvr/export3/nightly/1.3.1/src/sol-linux/hotspot/src/os_cpu/solaris_i486/vm/os_solaris_i486.cpp
"/net/nightsvr/export3/nightly/1.3.1/src/sol-linux/hotspot/src/os/solaris/vm/os_solaris.hpp", line 222: Error: os::Solaris::_processors_total is not accessible from static Solaris::processors_total().
"/net/nightsvr/export3/nightly/1.3.1/src/sol-linux/hotspot/src/os/solaris/vm/os_solaris.hpp", line 223: Error: os::Solaris::_processors_online is not accessible from static Solaris::processors_online().
2 Error(s) detected.
gnumake[2]: *** [os_solaris_i486.o] Error 2
gnumake[2]: Leaving directory `/net/nightsvr/export3/nightly/1.3.1/src/sol-linux/hotspot/build/solaris/solaris_i486_compiler1/product'
gnumake[1]: *** [the_vm] Error 2
gnumake[1]: Leaving directory `/net/nightsvr/export3/nightly/1.3.1/src/sol-linux/hotspot/build/solaris/solaris_i486_compiler1/product'
gnumake: *** [product1] Error 2