On Monday 28 January 2008, Wolfgang Denk wrote: > In message <[EMAIL PROTECTED]> you wrote: > > odd ... git-send-email ate the explanatory text ... > > --- > > The -f option to `ln` should give the same behavior as the -f option to > > the `rm` command. It is better to do this in one shot so as to avoid > > race conditions when building in parallel. I build on a quad G5 and > > without this change, it isn't uncommon for the build to fail when using > > -j8 due to this small window where the files don't actually exist. > > Note that "ln -s -f" will come down to two separate system calls as > well: > > ... > unlink(); > symlink(); > ... > > So you don't avoid the race condition; you're just making it a little > less likely at the cost of reduced portability.
yes, i know it's much less likely, but that difference on my system has been from 1-in-20 build failures to 1-in-none-so-far-out-of-hundreds. the real fix is to overhaul the u-boot build system, but that'll take quite a bit of time and this change is for all practical purposes, Good Enough. i dont know what portability issues you refer to considering the -f flag is in POSIX and has been supported on all Linux systems since before that (pre-2000). -mike
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