cli & Test cli compiling "Error" (WINDOWS 11) #49

Hi there,

I have a stranger Problem, the lib himself ok, but I can't test anything.
The cli and test unit, i can't compile it.

makefile is on Windows the big problem, by line 1.
I try with MSVC and MSYS2 same problems with make.

g++ main.cc -I/usr/local/lib -llicensepp -std=c++11 -O3 -o license-manager-sample
make: *** [Makefile:2: license-manager-sample] Error 1

I try with CodeBlock, PellesC, OpenWatcom C, until NOW, I can't, always some Errors.
CodeBlocks, Error by internals header or if this ok with headers from the separate file,
like crypto or ripe.

He not found header file.
Science more than 2 weeks now i try only for made the KEY-Gen I think....

I am a bit confused, so I ask here, sorry if something it's clear status to you.

Kind regards
Chris

UpDate for IDE trying, CodeBlocks etc.