build Xorg7.1 on 64-bit system with module libint10.so problem

[soararing]

on my 32-bit system, build libint10.so with scripts: 
gcc -shared .libs/helper_exec.o .libs/helper_mem.o .libs/pci.o .libs/xf86int10.o .libs/xf86int10module.o .libs/linux_vm86.o .libs/linux.o -lm -Wl,-soname -Wl,libint10.so -o .libs/libint10.so
 
it works well.
 
but on my 64-bit system, build libint10.so with scripts:
 
gcc -shared .libs/pci.o .libs/xf86int10module.o .libs/helper_exec.o .libs/helper_mem.o .libs/xf86int10.o .libs/xf86x86emu.o .libs/generic.o .libs/x86emu.o -lm -Wl,-soname -Wl,libint10.so -o .libs/libint10.so
 
it make xserver abort when startx.
 
what makes this happen? how to correct it? Thanks!
 
Thanks
Jeff
    
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