[MacPorts] #14102: fontconfig build fails if "head" is missing or unusable

[MacPorts]

#14102: fontconfig build fails if "head" is missing or unusable
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  Reporter:  ryandesign at macports.org  |       Owner:  ryandesign at macports.org
      Type:  defect                   |      Status:  new                    
  Priority:  Normal                   |   Milestone:  Port Bugs              
 Component:  ports                    |     Version:  1.6.0                  
Resolution:                           |    Keywords:                         
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Comment (by ryandesign at macports.org):

 I [https://bugs.freedesktop.org/show_bug.cgi?id=14304 filed a bug] with
 the developers of fontconfig. Maybe they'll change fontconfig to emit a
 better error message, or to avoid the problem altogether.

 In the process of researching that bug, I found out how I could probably
 make a one-line change to fontconfig to work around the problem (change
 "`head -1`" to "`sed -n 1p`" in `src/makealias`). I'm now torn as to
 whether I should do this, since doing so would mean the user would
 continue to have a broken `head` program on their system which could just
 cause problems for them further down the road.

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Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/14102#comment:2>
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