ubench make error: ‘CLK_TCK’ undeclared (first use in this function)

ubench 硬體效能測試的小程式 make 時會發生以下錯誤的解法

cpubench.c:93: error: ‘CLK_TCK’ undeclared (first use in this function) 
cpubench.c:93: error: (Each undeclared identifier is reported only once
cpubench.c:93: error: for each function it appears in.)

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