[CMake] Long command lines

[SF Markus Elfring]

> i've recently run into a problem (both windows/mingw and unix/intel) where the cmake-generated build files
> create too long command lines that break the overall build. more precisely, the build system uses architecture paths etc
> and hence there are long include directories for many packages; e.g. the fortran preprocessor from intel
> (in the version we have, cant be upgraded) only allows 4K command lines :-(

Can your tool process command-line parameters also from other
external input files?
Have you got any experiences around the reuse of "response files"?

Regards,
Markus