hello, looks like something broke circa commit 47f05fad43621aa1637427d857d639d0ecfbb7cd

Hello.
Something broke within the last 10 days. It used to work.
Probably 47f05fad43621aa1637427d857d639d0ecfbb7cd
Cross-compiling under ubuntu 18.04.3 for target Win10x64.
```
[14:17:54][DEBUG] Running 'ninja -j 4 ' in '/home/u/Desktop/_working/workdir/x86_64/OpenCL-ICD-Loader_git'
[1/4] Building CXX object CMakeFiles/OpenCL.dir/loader/windows/icd_windows_apppackage.cpp.obj
FAILED: CMakeFiles/OpenCL.dir/loader/windows/icd_windows_apppackage.cpp.obj
/home/u/Desktop/_working/workdir/toolchain/x86_64-w64-mingw32/bin/x86_64-w64-mingw32-g++ --sysroot=/home/u/Desktop/_working/workdir/toolchain/x86_64-w64-mingw32 -DCL_TARGET_OPENCL_VERSION=220 -DOpenCL_EXPORTS -Iinc -I. -Iloader -O3 -fstack-protector-all -D_FORTIFY_SOURCE=2 -O3 -DNDEBUG -MD -MT CMakeFiles/OpenCL.dir/loader/windows/icd_windows_apppackage.cpp.obj -MF CMakeFiles/OpenCL.dir/loader/windows/icd_windows_apppackage.cpp.obj.d -o CMakeFiles/OpenCL.dir/loader/windows/icd_windows_apppackage.cpp.obj -c loader/windows/icd_windows_apppackage.cpp
loader/windows/icd_windows_apppackage.cpp:27:10: fatal error: windows.management.deployment.h: No such file or directory
27 | #include
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
[2/4] Building C object CMakeFiles/OpenCL.dir/loader/windows/icd_windows_envvars.c.obj
[3/4] Building C object CMakeFiles/OpenCL.dir/loader/windows/icd_windows_hkr.c.obj
FAILED: CMakeFiles/OpenCL.dir/loader/windows/icd_windows_hkr.c.obj
/home/u/Desktop/_working/workdir/toolchain/x86_64-w64-mingw32/bin/x86_64-w64-mingw32-gcc --sysroot=/home/u/Desktop/_working/workdir/toolchain/x86_64-w64-mingw32 -DCL_TARGET_OPENCL_VERSION=220 -DOpenCL_EXPORTS -Iinc -I. -Iloader -O3 -fstack-protector-all -D_FORTIFY_SOURCE=2 -O3 -DNDEBUG -MD -MT CMakeFiles/OpenCL.dir/loader/windows/icd_windows_hkr.c.obj -MF CMakeFiles/OpenCL.dir/loader/windows/icd_windows_hkr.c.obj.d -o CMakeFiles/OpenCL.dir/loader/windows/icd_windows_hkr.c.obj -c loader/windows/icd_windows_hkr.c
loader/windows/icd_windows_hkr.c: In function 'khrIcdOsVendorsEnumerateHKR':
loader/windows/icd_windows_hkr.c:217:21: error: 'CM_GETIDLIST_FILTER_CLASS' undeclared (first use in this function); did you mean 'CM_GETIDLIST_FILTER_BITS'?
217 | ULONG ulFlags = CM_GETIDLIST_FILTER_CLASS |
| ^~~~~~~~~~~~~~~~~~~~~~~~~
| CM_GETIDLIST_FILTER_BITS
loader/windows/icd_windows_hkr.c:217:21: note: each undeclared identifier is reported only once for each function it appears in
loader/windows/icd_windows_hkr.c:218:21: error: 'CM_GETIDLIST_FILTER_PRESENT' undeclared (first use in this function); did you mean 'CM_GETIDLIST_FILTER_BITS'?
218 | CM_GETIDLIST_FILTER_PRESENT;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
| CM_GETIDLIST_FILTER_BITS
loader/windows/icd_windows_hkr.c:343:22: error: 'DEVPKEY_Device_ClassGuid' undeclared (first use in this function)
343 | &DEVPKEY_Device_ClassGuid,
| ^~~~~~~~~~~~~~~~~~~~~~~~
ninja: build stopped: subcommand failed.
```

Compare commit 47f05fad43621aa1637427d857d639d0ecfbb7cd with the surrounding changes, then reproduce the Ubuntu 18.04.3 cross-build using Ninja. Start with loader/windows/icd_windows_apppackage.cpp and loader/windows/icd_windows_hkr.c, where the missing headers, flags, and device property are reported. Done means the Win10x64 cross-build completes successfully.

Written by the indexing model from the issue text.