[help] stdint.h:83: error: conflicting types for 'int32_t'

[happycoding]

I install the latest psptoolchain on cygwin and try to compile a sample code, the following is error message:
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/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../psp/include/stdint.h:83: error:
conflicting types for 'int32_t'
../etc/inttypes.h:8: error: previous declaration of 'int32_t' was here
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../psp/include/stdint.h:84: error:
conflicting types for 'uint32_t'
../etc/inttypes.h:11: error: previous declaration of 'uint32_t' was here
---------------------
My question is: have you met this kind of error message before? how to fix it?

Thanks!