wineinstall fails after cvs update

[degs]

Hi,

I find tools/wineinstall frequently fails in ./configure when trying to 
rebuild Wine after a "cvs update". I only seem to be able to fix this by 
blowing away the whole tree and re-fetching it with "cvs checkout". Is 
wineinstall the Right Way to build Wine when one is trying to hack on it?

thanks
-- degs

PS: I know hardly anything about autoconf (shudder) and absolutely *zero* 
about CVS :-(