make copies of global lists before extending
authorNils Philippsen <nils@tiptoe.de>
Mon, 23 Nov 2015 12:52:14 +0000 (13:52 +0100)
committerPaul Davis <paul@linuxaudiosystems.com>
Mon, 23 Nov 2015 13:43:19 +0000 (08:43 -0500)
commite25ddc39f86f69e2e12cb679dff82a0c5068cc23
treef62685aa3d0ab3542022408082939dc69d503170
parent4d599b3da1ff8fa5fa172be32fbd14d0ba25b915
make copies of global lists before extending

Not doing so can make source or object files appear multiple times in
the list of files to be compiled or linked, e.g. when doing './waf build
install', subsequently leading to linker errors.
gtk2_ardour/wscript
libs/ardour/wscript
libs/gtkmm2ext/wscript