gcc 4.1 has problems with the extra qualification on some of the C++ headers of clanlib-0.6.5. It is a trivial fix, I'll add the patch to this bugreport.
Created attachment 74935 [details, diff] clanlib-0.6.5-gcc41.patch
Quick change of platform in bugzilla. Sorry about the email.
Created attachment 74994 [details, diff] 0.7.8 gcc41 patch Yours looks good for 0.6.5. Here's one for 0.7.8. Both are stable, so I'm assuming certain things dep on each version.
Fixed, thanks.