Date: Wed, 08 Jun 2011 23:35:54 +0200 From: magnum <rawsmooth@...dband.net> To: john-dev@...ts.openwall.com Subject: Re: Makefile LN = ln -sf On 2011-06-08 01:35, Solar Designer wrote: > Jim, magnum - > > In -jumbo-5, there are these changes (which were not in -jumbo-1): > > -LN = ln -sf > +LN = ln -f -s > > solaris-sparc64-cc: > + $(RM) arch.h > $(LN) sparc64.h arch.h > > and similar for other Solaris targets. > > Why? Didn't the original Makefile work fine on Solaris? > > Then, why make both changes at once? Are they unrelated or are they > both an attempt to fix the same issue? > > Normally, the "-f" option to "ln -s" tells it to remove existing > destination files before creating the symlink, so the $(RM) shouldn't be > needed. Also, normally "ln -sf" is the same as "ln -f -s". Out of curiosity I revisited this today, here is the correct story: The LN change can be reverted (not that it will do any difference). The problem is that regardless of the -f option, neither /usr/ucb/ln nor /usr/bin/ln (they do act differently in other aspects) will remove/alter an existing symlink, period. This is documented behaviour. The -f option does mean "force" but not in that aspect. No workaround (within ln) as far as I could tell. GNU has had much more impact than Esperanto :) magnum
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