On Tue, Dec 22, 2009 at 11:37 AM, Nikos Chantziaras <rea...@arcor.de> wrote: > On 12/22/2009 07:21 PM, Helmut Jarausch wrote: >> >> Hi, >> >> I have ebuilds fetching the source code directly from a repository >> (be it CVS,SVN,HG,GIT,...) >> I'd like to modify the .ebuild to enter compilation only if something >> has been updated. >> Is this possible, has somebody else tried to do so? > > Given that portage relies on USE flags and version numbers to decide on > whether a rebuild is necessary, no, it's not possible. > > But I'd be interested too if someone could think of some clever hack to > accomplish this :)
Maybe just make the merge fail. So that way you could "emerge @live-rebuild --keep-going" and it would only actually emerge things that had changed.