In article <20050612222243.0b78bc65.jklowden@schemamania.org>,
James K. Lowden <tech-userlevel@netbsd.org> wrote:
>Back to the future: Ingres is free again.  If you google "ingres
>site:netbsd.org" you get a lot of messages about the group, and some
>ancient ones about the original RDBMS from Berkeley.  You may know CA
>released it as open source.  I thought I'd try my hand at porting it. 
>Since going commercial, Ingres grew threads, about which it seems I'll
>have to learn.  
>
>My first real difficulty has to do with "atomic clear".  The build
>requires it:
>
>ingres/src/cl/hdr/hdr_unix_win/csnormal.h:2621:11: 
>	#error : must define an atomic clear

I think that the best way to make progress is to follow what Linux
does, and mark it XXX:jkl or something where you need to re-visit it.

christos