Compile several projects (with makefile), but stop on first broken build?

Question

I want to do something like:

for i in *
do
    if test -d $i
    then
        cd $i; make clean; make; cd -;
    fi;
done

And this

Answer 1

You can check whether the make has exited successfully by examining its exit code via the $? variable, and then have a break statement:

...
make

if [ $? -ne 0 ]; then
    break
fi