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bug#9372: 24.0.50; missing header biditype.h

From: Jan Djärv
Subject: bug#9372: 24.0.50; missing header biditype.h
Date: Fri, 26 Aug 2011 07:39:59 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:5.0) Gecko/20110624 Thunderbird/5.0

Stefan Monnier skrev 2011-08-26 06:11:
timestamp newer than deps/bidi.d, the latter would be regenerated before
anything else happened. But maybe it doesn't work like that?

No, it's the opposite: the bidi.d file from previous compilation
(i.e. older) is used to guess whether bidi.c needs to be recompiled.

Basically, the problem is that the bidi.d file should contain
dependencies which say "if foo.c is newer than bidi.c, then recompile,
but if foo.c doesn't exist any more, then just ignore this rule rather
than foolishly trying to build foo.c".
I don't know if GNU make provides such a kind of dependency (tho you
can get it via ifeq trickery).

The problem is that make includes bidi.d.  So the rule would have to be
if bidi.d is older than bidi.c, don't include it.  I don't know if that is
possible.  Also, if foo.c don't exist anymore may be an error, for example
removed from the repository by mistake.

        Jan D.

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