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-rw-r--r--Source/CTest/cmProcess.cxx8
1 files changed, 8 insertions, 0 deletions
diff --git a/Source/CTest/cmProcess.cxx b/Source/CTest/cmProcess.cxx
index 000bc85..167b992 100644
--- a/Source/CTest/cmProcess.cxx
+++ b/Source/CTest/cmProcess.cxx
@@ -175,6 +175,14 @@ int cmProcess::GetNextOutputLine(std::string& line, double timeout)
// 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;
}