C:\code\d\bugs>type 148_1.d
/**
 *
 */
struct MyStruct(T)
{
    static if( true )
    {
        void f1() {}
    }
}

void main()
{

}
C:\code\d\bugs>dmd -D -o- 148_1.d
148_1.d(6): Error: static if conditional cannot be at global scope

C:\code\d\bugs>