diff -up PyQwt-5.2.0/configure/configure.py.manually_link_qwt PyQwt-5.2.0/configure/configure.py --- PyQwt-5.2.0/configure/configure.py.manually_link_qwt 2009-08-01 02:28:33.000000000 -0500 +++ PyQwt-5.2.0/configure/configure.py 2012-10-19 11:49:01.088256144 -0500 @@ -747,9 +747,9 @@ def setup_qwt5_build(configuration, opti # yes, zap all occurrences of a qwt library while options.extra_libs.count(qwt): options.extra_libs.remove(qwt) - elif qwt not in options.extra_libs: + #elif qwt not in options.extra_libs: # no, add the qwt library if needed - options.extra_libs.append(qwt) + #options.extra_libs.append(qwt) # zap the temporary directory try: