C is too high-level...
replace pod2html with new PodtoHtml? (requires other modules from CPAN)
automate testing with large parts of CPAN
- Unicode collation? http://www.unicode.org/unicode/reports/tr10/
turn Cwd into an XS module? (Configure already probes for getcwd())
mmap for speeding up input? (Configure already probes for the mmap family)
sendmsg, recvmsg? (Configure doesn't probe for these but the units exist)
setitimer, getitimer? (the metaconfig units exist)
+Unicode
+ SCSU? http://www.unicode.org/unicode/reports/tr6/
+ Collation? http://www.unicode.org/unicode/reports/tr10/
+ Normalization? http://www.unicode.org/unicode/reports/tr15/
+ EBCDIC? http://www.unicode.org/unicode/reports/tr16/
+ Regexes? http://www.unicode.org/unicode/reports/tr18/
+ Case Mappings? http://www.unicode.org/unicode/reports/tr21/
+
Ongoing
keep filenames 8.3 friendly, where feasible
upgrade to newer versions of all independently maintained modules