From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roger Pau Monne <roger.pau@citrix.com>
Subject: Re: [PATCH 2/9] tools/build: fix pygrub linking
Date: Wed, 18 Jul 2012 14:55:35 +0100
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To: Ian Jackson <Ian.Jackson@eu.citrix.com>
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Ian Jackson wrote:
> Roger Pau Monne writes ("Re: [PATCH 2/9] tools/build: fix pygrub linking"):
>> Ian Jackson wrote:
>>> If DESTDIR is not "" then $(PRIVATE_BINDIR)/pygrub is not the same
>>> directory as $(DESTDIR)/$(BINDIR).
>> Ok, both conditions have to be meet, that DESTDIR == "" and
>> PRIVATE_BINDIR == BINDIR (so $(DESTDIR)/$(BINDIR) == $(PRIVATE_BINDIR)).
> 
> Right.  OK.  I see now why my test -e is wrong.
> 
> But I still think this should be done with an if in the rule's
> command, rather than a makefile conditional.

What do you think about:

set -e; if [ `readlink -f $(DESTDIR)/$(BINDIR)` != \
             `readlink -f $(PRIVATE_BINDIR)` ]; then \
                ln -sf $(PRIVATE_BINDIR)/pygrub $(DESTDIR)/$(BINDIR); \
fi