//old
//if(const char* toolset = gg->GetPlatformToolset())

//new
if(this->Target->GetProperty("PLATFORM_TOOLSET"))
{
	std::string tmp("<PlatformToolset>");
	tmp += this->Target->GetProperty("PLATFORM_TOOLSET");
	tmp += "</PlatformToolset>";
	this->WriteString(tmp.c_str(), 2);
}
else if(const char* toolset = gg->GetPlatformToolset())
//...