buildd could run "make -i" twice on failure

[Daniel Pocock <daniel@pocock.com.au>]

After a build fails on the buildd, it would be really useful to have the
build run again twice with "make -i" and log the output of the second retry

Obviously I could hack something like this into debian/rules:


make || make -i ; make -i ; exit 1

but it would be nice to have a centrally managed approach


The output would then provide a more complete set of feedback about
whether a package just has 1 error or 500 errors, this would provide
greater visibility of potential effort required for porting

Some packages don't compile their test cases without running "make
check", so it would also be useful to force the test cases to be
compiled (with -i) to check for compile errors