Re: [U-Boot-Users] [PATCH] Use `ln -sf` rather than `rm -f && ln -s`

In message 200801280638.59012.vapier@gentoo.org 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.

Best regards,

Wolfgang Denk