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[bug #30370] add a shorthand syntax for foreach-eval-call

From: Reinier Post
Subject: [bug #30370] add a shorthand syntax for foreach-eval-call
Date: Tue, 06 Jul 2010 15:22:59 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20100625 Firefox/3.6.6 FireTorrent/2.0.1 GTB7.1 ( .NET CLR 3.5.30729)


                 Summary: add a shorthand syntax for foreach-eval-call
                 Project: make
            Submitted by: r_p
            Submitted on: Tue 06 Jul 2010 03:22:58 PM GMT
                Severity: 3 - Normal
              Item Group: Enhancement
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: None
        Operating System: Any
           Fixed Release: None
           Triage Status: None



No bug, but something that has been on my wishlist for some 20 years:

In practically every Makefile I write, I want to parametrize rules with
multiple variables.  It would be incredibly nice to have a shorthand syntax
for this, e.g.

progs = dot neato circo fdp
exts = emf ps png gif

%-$(p:progs).$(x:exts): %.dot
  $(p) -T%(x) $? > $@

instead of having to use ugly, verbose workarounds such as foreach-eval-call.


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