ExtUtils::CBuilder->have_compiler properly uses unique file names for
some of its steps, but not all of them. Change to a temporary directory
before using it to force its files to be unique.
This allows the two xs test scripts to run in parallel without issue, so
we can remove the test rules forcing them to run sequentially.
ExtUtils::CBuilder->have_compiler properly uses unique file names for some of its steps, but not all of them. Change to a temporary directory before using it to force its files to be unique.
This allows the two xs test scripts to run in parallel without issue, so we can remove the test rules forcing them to run sequentially.