[kalleboo]

Googling for "libcrurl" currently gives you a "results for libcurl" as an autocorrect. If Google succeeds you'll get the opposite.

I'd say the name is definitely too close for comfort.

[Phemist]

It would be interesting to keep track of what the results will be in several search engines across time when you type:

'libcrul'.

Will the suggestion be a) you switched the 'r' and 'u' and get libcurl, or b) you missed an 'r' and get 'libcrurl'.