[Gems-users] GEMS 2.0: errors when compiling opal

[Ricardo Quislant del Barrio <quislant@xxxxxxxxx>]

Hello,
I'm trying to install GEMS 2.0 in my x86/Linux Ubuntu6 machine.
Ruby compiles fine but when compiling Opal I experience some problems:

system/memop.h:298: warning: ‘class load_interface_t’ has virtual 
functions but non-virtual destructor
system/mshr.h:145: warning: ‘class miss_t’ has virtual functions but 
non-virtual destructor
system/wait.h:102: warning: ‘virtual void waiter_t::Wakeup(uint32)’ was 
hidden
system/mshr.h:164: warning: by ‘virtual void miss_t::Wakeup()’
system/cache.h:52: warning: ‘class cache_t’ has virtual functions but 
non-virtual destructor
system/cache.h: In member function ‘bool 
generic_cache_template<BlockType>::Read(pa_t, waiter_t*, bool, bool*)’:
system/cache.h:226: error: ISO C++ forbids comparison between pointer 
and integer
system/cache.h: In member function ‘bool 
generic_cache_template<BlockType>::Write(pa_t, waiter_t*)’:
system/cache.h:248: error: ISO C++ forbids comparison between pointer 
and integer
system/pseq.h: In member function ‘int pseq_t::getTotalSlotsTaken()’:
system/pseq.h:673: warning: comparison between signed and unsigned 
integer expressions
system/pseq.h: In member function ‘void pseq_t::addICountStat(int, int)’:
system/pseq.h:1631: warning: comparison between signed and unsigned 
integer expressions
system/pseq.h: At global scope:
system/pseq.h:1928: warning: ‘class proc_waiter_t’ has virtual functions 
but non-virtual destructor
system/wait.h:102: warning: ‘virtual void waiter_t::Wakeup(uint32)’ was 
hidden
system/pseq.h:1931: warning: by ‘virtual void proc_waiter_t::Wakeup()’
make[1]: *** [x86-linux/obj/symtrace.o] Error 1
make[1]: Leaving directory `/home/quislant/gems-2.0/opal'
make: *** [module] Error 2

Anyone has any idea?
g++ version: 4.0.3