1/PERL_VERSION/ {base = $3}
2/PERL_SUBVERSION/ {subvers = $3}
3END {
4if (subvers == 0)
5	printf "p9pvers = 5.%03d\n", base> "buildinfo";
6else
7	printf "p9pvers = 5.%03d_%02d\n" , base, subvers> "buildinfo";
8}
9