[Mingw-cross-env-list] Using MXE to compile for Linux statically

[ST]

Dear MXE list,

1) could somebody please tell me how can I use MXE to compile on Linux
for Linux statically?

2) I have launched make inside of MXE directory and it started to build
with the default MXE_TARGET which is not what I want - how can delete
all those generated files without deleting
MXE_TARGETS=x86_64-w64-mingw32 files which I still need.

Thank you in advance,
ST