1.1 --- a/lemon/time_measure.h	Fri Jan 23 16:30:05 2009 +0000
     1.2 +++ b/lemon/time_measure.h	Sat Feb 07 15:30:04 2009 +0000
     1.3 @@ -29,6 +29,7 @@
     1.4  #include <windows.h>
     1.5  #include <cmath>
     1.6  #else
     1.7 +#include <unistd.h>
     1.8  #include <sys/times.h>
     1.9  #include <sys/time.h>
    1.10  #endif