perl -MConfig -MExtUtils::Embed -e " system $Config{cc}, qw/ -o interp interp.c /, ccopts(), ldopts() ; "

There's probably a fairly straightforward perl one liner to do the job - but the quoted one liner is not it.

The problem is that ccopts() and ldopts() don't return the values we're seeking - instead they print those values to STDOUT (or STDERR, FAIK ... I haven't checked).
So we first need to capture those outputs before we can pass them to the system call.

In the script that I hacked up, I discovered that I needed to chomp() the ldopts() output, though not the ccopts() output.
That seemed a bit odd, but rather than try to work out what was going on I just decided to chomp() both outputs for safety.

Cheers,
Rob