// Record exit information.
this->ExitValue = cmsysProcess_GetExitValue(this->Process);
this->TotalTime = cmSystemTools::GetTime() - this->StartTime;
+ // Because of a processor clock scew the runtime may become slightly
+ // negative. If someone changed the system clock while the process was
+ // running this may be even more. Make sure not to report a negative
+ // duration here.
+ if (this->TotalTime <= 0.0)
+ {
+ this->TotalTime = 0.0;
+ }
// std::cerr << "Time to run: " << this->TotalTime << "\n";
return cmsysProcess_Pipe_None;
}