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+/* For some machines GNU MP needs to define an auxiliary function:
+
+ udiv_qrnnd (quotient, remainder, high_numerator, low_numerator, denominator)
+
+ Divides a two-word unsigned integer, composed by the integers
+ HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
+ in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
+ than DENOMINATOR for correct operation. If, in addition, the most
+ significant bit of DENOMINATOR must be 1, then the pre-processor symbol
+ UDIV_NEEDS_NORMALIZATION is defined to 1. */