strange compiler error with division operation

["rainfeng _micro" <rainfeng_micro at hotmail dot com>]

Dear Mr:
   I am using gcc-3.3.2 and newlib-1.11.0 for powerpc-eabi target. When I 
make my program, two strange error went out with the division operation:
The first one:
  temp = v1/100; //error:   undefined reference to `__mulh'

The second:
  wtemp    = (offset << 8)/interval; //error:  undefined reference to 
`__quoss'

I don't know what the _mulh and __quoss are. Have I to include some lib to 
do division operation in GCC ? Thank you for help.

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