Hello,we have problems with VS2010 making a complete rebuild every now and then in our c++ solution. The behaviour is the same using VS2010 IDE or msbuild.I started investigating this by running a msbuild with increased verbosity (by using switch /v:detailed). It shows this kind of output for our first project when it thinks a full build is needed:Task "CL" Read Tracking Logs: Debug\cl.read.1.tlog Outputs for D:\DATA\SRC\AA027813_HELSINKI\CISPD\LARGE_COMPONENTS\DEVICELINK\SOURCE\COMMON\IFC\TIME\PRECISECLOCK.CPP: D:\DATA\SRC\AA027813_HELSINKI\CISPD\LARGE_COMPONENTS\DEVICELINK\SOURCE\COMMON\IFC\TIME\DEBUG\PRECISECLOCK.OBJ D:\DOCUMENTS AND SETTINGS\ALL USERS\APPLICATION DATA\SOPHOS\SOPHOS ANTI-VIRUS\CONFIG\CONFIG.BOPS was modified at 3.3.2011 16:06:43. PreciseClock.cpp will be compiled. C:\Program Files\Microsoft Visual Studio 10.0\VC\bin\CL.exe /c /I../../ /ID:\Data\src\aa027813_helsinki\cispd\large_components\devicelink\source\DeviceLink\Code\CDI\../../../common/boost_1_45_0/ /ZI /nologo /W3 /WX /Od /Oy- /D WIN32 /D _DEBUG /D _LIB /Gm /EHa /RTC1 /MDd /GS /fp:precise /Zc:wchar_t /Zc:forScope /Fo"Debug\\" /Fd"Debug\vc100.pdb" /Gd /TP /analyze- /errorReport:queue PreciseClock.cppAnd this is the output when it does not do a full rebuild:Task "CL" Read Tracking Logs: Debug\cl.read.1.tlog Outputs for D:\DATA\SRC\AA027813_HELSINKI\CISPD\LARGE_COMPONENTS\DEVICELINK\SOURCE\COMMON\IFC\TIME\PRECISECLOCK.CPP: D:\DATA\SRC\AA027813_HELSINKI\CISPD\LARGE_COMPONENTS\DEVICELINK\SOURCE\COMMON\IFC\TIME\DEBUG\PRECISECLOCK.OBJ All outputs are up-to-date.Done executing task "CL".Done building target "ClCompile" in project "IfcTime.vcxproj".Am I interpreting this correctly: VS2010 is making a rebuild because a configuration file of Sophos Anti virus has changed? Why would that be?Note that the point is of course not that this particular file should cause rebuild but that any file unrelated to the build should not cause a rebuild.I greatly appreciate any help you can give or any workarounds that you can think of.Thanks,-Marko
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