compile - files with CreateProcess error (windows) - path max length limitation

It seems like I am hitting windows path limit. This was a problem with yotta, which I recall added unicode paths support, to overcome this?

cd C:\Code\git_repo\github\mbed-rtos-thread-helloworld
python C:\Code\git_repo\github\neo\neo.py compile -m K64F -t GCC_ARM
[neo.py] Exec python mbed-os/tools/make.py --source=C:\Code\git_repo\github\mbed-rtos-thread-helloworld --build=C:\Code\git_repo\github\mbed-rtos-thread-helloworld\.build -m K64F -t GCC_ARM
Building project MBED-RTOS-THREAD-HELLOWORLD (K64F, GCC_ARM)
[ERROR] [Error 87] The parameter is incorrect

vs

cd C:\2
python C:\Code\git_repo\github\neo\neo.py compile -m K64F -t GCC_ARM
[neo.py] Exec python mbed-os/tools/make.py --source=C:\2 --build=C:\2\.build -m K64F -t GCC_ARM
Building project 2 (K64F, GCC_ARM)
Compile: Mutex.cpp
Compile: RtosTimer.cpp
Compile: Semaphore.cpp
Compile: Thread.cpp

[bogdanm]

Workaround until this is fixed: try running in a Linux VM.

[0xc0170]

yotta workaround has been applied, yet compiling Thread and everything else generates 38000 symbols link command. This will be addressed with response files.

Please provide commit/PR reference, or might be better to reference this via commit message, we can track/review changes done for this issue.