This is a cross-compiler that runs on Linux.
git clone https://github.com/alexalkis/ace
cd ace
mkdir build
cd build
cmake ..
make
export ACE_Basic="/where/ever/you/cloned/it/ace"
That last export you might consider appending it to your ~/.bashrc if you find yourself using this cross-compiler.
Copy ace and acecc (in acecc dir) somewhere in your path.
You will need vasm & vlink.
If you have a foo.b try
acecc foo.b
and you should be left with an amiga executable called foo
Have fun.