[CMake] how to completelly remove the /Zm1000 compile option via CMakeLists.txt file

[Anatoly Shirokov]

I use Visual Studio 6 generator and have problem with /Zm1000 option.

How to completelly remove the /Zm1000 compile option via CMakeLists.txt 
file?

May be is there other way?

Thanks in advance,
Anatoly.