I posted an issue on the mantis bug tracker a while ago regarding supporting the /LTCG option for the MSVC71 generator. The issue history indicates this problem is fixed, but with CMake 2.6.2 the correct flags are still not being generated for the MSVC71 project files and nmake makefiles. Fortunately, the MSVC compiler/linker is smart enough to realize this and restarts the link using /LTCG. The only bad thing about this is it extends the time required to link because it has to restart the link again.
Some details are provided below. Thanks in advance! Luke ----------------------- NMake output: ----------------------- Linking CXX static library ..\build\MT-DLL\Util-SL.lib XMLWriter.cpp.obj : warning LNK4218: non-native module found; restarting link with /LTCG ----------------------- MSVC71 output: ----------------------- Timer.obj : warning LNK4218: non-native module found; restarting link with /LTCG ----------------------------- Here's the original issue: ----------------------------- Summary 0006794: Visual Studio compiler 'WholeProgramOptimization' (/LTCG) Description Hi, The cl.exe compiler option /LTCG (i.e. "WholeProgramOptimization") does not seem to be generated correctly into the Visual Studio project file. This error occurs in Visual Studio .NET 2003 (v7.1), and probably occurs in later versions as well. The /LTCG is a whole configuration setting, which should be added to the "Configuration" xml tag in the vcproj file as in the following example: <Configuration Name="Release|Win32" OutputDirectory="Release" . . . WholeProgramOptimization="TRUE"> This should be an easy fix. Please feel free to contact me with any questions you may have. Thanks! Luke (0013076) bill.hoffman (manager) 2008-08-19 15:09 Committer: Bill Hoffman <[EMAIL PROTECTED]> /cvsroot/CMake/CMake/Source/cmGlobalVisualStudio7Generator.cxx,v <-- cmGlobalVisualStudio7Generator.cxx new revision: 1.101; previous revision: 1.100 BTW, this flag is not supported in VS8 and greater: cl : Command line warning D9002 : ignoring unknown option '/LTGC' Issue History Date Modified Username Field Change 2008-04-11 15:49 lkucalaba New Issue 2008-08-19 15:09 bill.hoffman Status new => closed 2008-08-19 15:09 bill.hoffman Note Added: 0013076 2008-08-19 15:09 bill.hoffman Resolution open => fixed _______________________________________________ CMake mailing list [email protected] http://www.cmake.org/mailman/listinfo/cmake
