INCLUDE_EXTERNAL_MSPROJECT does not support cross compilation project
INCLUDE_EXTERNAL_MSPROJECT
is ignored if the target is not Windows.
It is because INCLUDE_EXTERNAL_MSPROJECT
checks the target it Windows or not.
Sometime we want to use INCLUDE_EXTERNAL_MSPROJECT
in cross compilation project, so we should support it.
For workaround, we can set "WIN32" variable temporary.
set(WIN32 1)
include_external_msproject(...)
set(WIN32 0)
Edited by Tomoki Imai