From: Yukihiro Matsumoto Date: 2006-05-05T18:03:40+09:00 Subject: Re: What do you say to log2 to Math module? Hi, In message "Re: What do you say to log2 to Math module?" on Fri, 5 May 2006 11:12:38 +0900, Logan Capaldo writes: |> Right. And I did it last night. Although gcc gives me warning |> "incompatible implicit declaration of built-in function 'log2'" unless |> I specify -std=c99. |Off on a tangent here, but is -std=c99 ok with ruby's K&R style C? No. That's the problem. matz.