opencv: build error because of rogue libpng, libtiff and libjasper frameworks

[vvaytodawn@…]

$  sudo port install opencv +universal
--->  Computing dependencies for opencv
--->  Building opencv
Error: Target org.macports.build returned: shell command failed (see log for details)
Log for opencv is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_opencv/opencv/main.log
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>

[vvaytodawn@…]

I got this error message when trying to install opencv on my Mac. Someone help me T^T

[ryandesign (Ryan Carsten Schmidt)]

The log shows:

:info:build ld: warning: ignoring file /Library/Frameworks//libpng.framework/libpng, missing required architecture x86_64 in file
:info:build ld: warning: ignoring file /Library/Frameworks//libtiff.framework/libtiff, missing required architecture x86_64 in file
:info:build ld: warning: ignoring file /Library/Frameworks//libjasper.framework/libjasper, missing required architecture x86_64 in file

Please delete /Library/Frameworks/libpng.framework, /Library/Frameworks/libtiff.framework and /Library/Frameworks/libjasper.framework; they are not part of MacPorts and are interfering with MacPorts. Then "sudo port clean opencv" and try again.

[vvaytodawn@…]

Thank you very much. It's working perfectly