multiple definition of `X86ISA::GDB_REG_BYTES

[kf200660306]

When I use "scons build/X86/gem5.opt" to build gem5, it show some error to me.

build/X86/arch/x86/remote_gdb.o:(.bss+0x0): multiple definition of `X86ISA::GDB_REG_BYTES'
build/X86/sim/system.o:(.bss+0x28): first defined here
collect2: error: ld returned 1 exit status
scons: *** [build/X86/gem5.opt] Error 1

Because system.o is a object file, I can not write or delete code.

Do you have any ways to solve the problem?