make ".if exists" problem/question
Emanuel.strobl at gmx.net
Mon Sep 5 12:30:03 PDT 2005
Am Montag, 5. September 2005 18:03 CEST schrieb Harti Brandt:
> On Thu, 25 Aug 2005, Emanuel Strobl wrote:
> You should think of .if and .for as "preprocessor directives". They are
> processed when make reads the makefile and builds the dependency graph.
> If you need something more dynamic you must use either a shell line:
> if [ -f baz ] ; then ...
> or go with sub-makes.
> Generally you don't want to use .if to check for a file that your
> makefile creates. In this case you just should use make itself. Given
> that the tree you need to have is named 'tree' do something like:
> installcfworld: tree
> installcfconfig: tree
> mkdir tree
Thanks, I understood it, and the project grew fine. Will be available this
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