[MacPorts] #28802: symlink command doesn't use -f

[MacPorts]

#28802: symlink command doesn't use -f
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 Reporter:  vivacarlie@…          |       Owner:  macports-tickets@…                   
     Type:  defect                |      Status:  new                                  
 Priority:  Normal                |   Milestone:                                       
Component:  ports                 |     Version:  1.9.2                                
 Keywords:  libmng                |        Port:  libmng                               
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 litterally, if i replace -c with -fc on each of the preconfigure commands,
 it works, I can't even pretend to know tcl
 --->  Computing dependencies for qt4-mac..
 --->  Dependencies to be installed: libmng
 --->  Configuring libmng
 ln: ./configure.in: File exists
 shell command "cd
 '/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_libmng/work/libmng-1.0.10'
 && ln -s makefiles/configure.in ." returned error 1
 Error: Target org.macports.configure returned: shell command failed (see
 log for details)
 Warning: the following items did not execute (for libmng):
 org.macports.activate org.macports.configure org.macports.build
 org.macports.destroot org.macports.install
 Error: Failed to install libmng
 Log for libmng is at:
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_libmng/main.log
 Error: The following dependencies were not installed: libmng
 Error: Status 1 encountered during processing.
 To report a bug, see <http://guide.macports.org/#project.tickets>

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Ticket URL: <https://trac.macports.org/ticket/28802>
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