Downloaded ecc package, put it into C:\ellcc

added C:\ellcc to my path

did this:

C:\Dev\testecc>copy con hello.c
int main(int argc, char **argv)
{
return 0;
}
^Z
1 file(s) copied.

C:\Dev\testecc>ecc -target arm32v7-linux hello.c
Unexpected arch
UNREACHABLE executed at /home/rich/ellcc-release/llvm/tools/clang/lib/Driver/Tools.cpp:9072!

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application’s support team for more information.

C:\Dev\testecc>

So… what am I doing wrong?

As far as I can tell this is exactly what the website says to do to build.