[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:  blair at macports.org
      Type:  defect                   |      Status:  new               
  Priority:  Normal                   |   Milestone:  Port Bugs         
 Component:  ports                    |     Version:  1.7.0             
Resolution:                           |    Keywords:                    
      Port:  m4                       |  
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Comment(by ryandesign at macports.org):

 The README says:

 {{{
 M4 has an optional dependency on the libsigsegv library:
   http://www.gnu.org/software/libsigsegv/
 If the library has not been installed in the standard location, you
 can use `./configure --with-libsigsegv-prefix=/path/to/dir', to make
 the build of `m4' use /path/to/dir/include/sigsegv.h as appropriate.
 The use of this library is optional; the only difference in having it
 available is that it increases the number of platforms where `m4' can
 correctly distinguish stack overflow from an internal bug.  It is
 recommended that you use version 2.6 or newer.
 }}}

 No indication of how to disable it.

-- 
Ticket URL: <http://trac.macports.org/ticket/17272#comment:2>
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