Fixes linker error when used with gMock on Windows
Fixes linker error when used with gMock on Windows

lijun0914/googletest,lijun0914/googletest,duythanhphan/googletest,duythanhphan/googletest,smarr/googletest,haoranzeus/googletest,smarr/googletest,smarr/googletest,duythanhphan/googletest,smarr/googletest,lijun0914/googletest,haoranzeus/googletest,haoranzeus/googletest,duythanhphan/googletest