[MacPorts] #17606: Default variant of vim doesn't build due to X11 dependency

[MacPorts]

#17606: Default variant of vim doesn't build due to X11 dependency
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 Reporter:  pgijnxn02@…               |       Owner:  raimue@…           
     Type:  defect                    |      Status:  new                
 Priority:  Normal                    |   Milestone:  Port Bugs          
Component:  ports                     |     Version:  1.7.0              
 Keywords:  Xsetlocale X11            |        Port:  vim                
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Comment(by messi@…):

 Replying to [comment:6 raimue@…]:
 > Replying to [comment:5 messi@…]:
 > > This problem comes with `--enable-multibyte`. Replacing it with
 `--disable-multibyte` also fixes the problem. No libX11 needed.
 >
 > Thanks for tracking this down. Strange enough that multibyte support
 needs X. How should I change this? Should I move multibyte in its own
 variant, as it was until some time ago?
 Good question. I think you should take a look at
 `./src/auto/configure:15458` first. When you allow `--enable-multibyte` to
 be set (globally or by variant) you should make sure that `$x_includes` is
 empty if X11 is not installed. Otherwise `configure` tries to link the
 check program against libX11.

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Ticket URL: <http://trac.macports.org/ticket/17606#comment:7>
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