linking to Qt4 on windows
        * goo/GooTimer.[cc|h]: Only build if gettimeofday is available
        * poppler/Gfx.cc: Only use the timer for profiling if gettimeofday is
        available
        * poppler/GlobalParams.cc: Remove extra unlockGlobalParams that was
        making windows hang
        * splash/SplashFTFontEngine.cc: i need unistd.h on windows also
        * splash/SplashFontFile.cc: i need unistd.h on windows also