midl generates same record /env win32 /env win64

in visible studio, accumulate foo.idl, midl generates surrogate information foo_p.c.

unfortunately, win32 x64 files, uses same filename. win32, record starts with:

#if !defined(_m_ia64) && !defined(_m_amd64)

for x64, record starts with:

#if defined(_m_amd64)

when build win32 following immediately build x64, doesn't reinstate foo_p.c file, definition digest fails link.

i attempted carrying pre-build eventuality deletes foo_p.c record it's wrong architecture, nonetheless vs doesn't even worry run step.

how should i i build settlement following other?

code1