[MacPorts] #17272: m4 links with libsigsegv if present

[MacPorts]

#17272: m4 links with libsigsegv if present
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 Reporter:  ryandesign at macports.org  |       Owner:  macports-tickets at lists.macosforge.org
     Type:  defect                   |      Status:  new                                  
 Priority:  Normal                   |   Milestone:  Port Bugs                            
Component:  ports                    |     Version:  1.7.0                                
 Keywords:                           |        Port:  m4                                   
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 m4 doesn't declare a dependency on libsigsegv, but uses it if present:

 {{{
 2008-11-16 00:52:53 -0600

 Link (dyld) error:

 Library not loaded: /mp/lib/libsigsegv.0.dylib
   Referenced from: /mp/bin/gm4
   Reason: image not found
 }}}

 Presumably we should add the configure argment `--without-libsigsegv-
 prefix`. I see a `--without-libpth-prefix` option too; we should probably
 use that too. I haven't yet tested whether these do what we want.

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Ticket URL: <http://trac.macports.org/ticket/17272>
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