diff --git a/CMakeLists.txt b/CMakeLists.txt index 2bb3196b7..d8c8e755b 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -344,10 +344,14 @@ ENDIF() IF(WIN32 AND NOT ANDROID) - # Check window version - INCLUDE (OsgDetermineWinVersion) - get_WIN32_WINNT(WIN_VERSION) - ADD_DEFINITIONS(-D_WIN32_WINNT=${WIN_VERSION}) + OPTION(OSG_DETERMINE_WIN_VERSION "Wheter to automatically determine current Windows version" ON) + + IF(OSG_DETERMINE_WIN_VERSION) + # Check window version + INCLUDE (OsgDetermineWinVersion) + get_WIN32_WINNT(WIN_VERSION) + ADD_DEFINITIONS(-D_WIN32_WINNT=${WIN_VERSION}) + ENDIF(OSG_DETERMINE_WIN_VERSION) IF(MSVC) # This option is to enable the /MP switch for Visual Studio 2005 and above compilers