/IMPLICIT_INCLUDE
       /IMPLICIT_INCLUDE (D)
       /NOIMPLICIT_INCLUDE

    /IMPLICIT_INCLUDE enables inclusion of source files as a method
    of finding definitions of template entities. By default it is
    enabled for normal compilation, and disabled for preprocessing
    only. The search rules for finding template definition files is
    the same as for include files.

    /NOIMPLICIT_INCLUDE disables inclusion of source files as a
    method of finding definitions of template entities. You might
    want to use this option in conjunction with the /STANDARD=MS
    command line option, to match more closely the behavior on
    Microsoft C++.